This is a bit of smut I know damned well the mouse wouldn’t approve of, and I don’t really approve of it either, but here we are. No infringement intended. All characters are of legal age and any flashbacks do not contain sexual content.
Hiro’s 19th birthday was fast approaching, and he had no idea how we was going to spend it. Or with whom.
Spending the last several years fighting supervillains and robots and whatnot with his team and his buddy Baymax, while also dealing with all the fun and awkwardness of puberty, had shaped the boy genius into a young stud, something he was only obliquely aware of. He still measured himself unconsciously against his perfect, but deceased, older brother, and while he mostly had made peace with it, the desire to be someone Tadashi would be proud of still buzzed along as an undercurrent to, well, everything. It was almost as though he were driven to make up for that loss by being as awesome as his brother, on top of being the best he could be as Hiro.
When it became clear that his frail kid body was a liability in his superheroics, he put that big brain of his on the task. Having access to state of the art labs and a team of college geniuses with various specialties meant he was very well equipped to capitalize on whatever nature saw fit to give him, and then some. And so over the past five years, he’d grown from a scrawny five foot tall 14-year-old to a healthy, strong, and well built young adult of 19…one who’d also been engaged in superheroics every night for five years.
After one particularly demanding battle about a year into their superheroics, he had talked Wasabi into showing him around the gym. The big guy was naturally burly, and his aversion to germs meant he worked out at home — and as an appreciative Hiro discovered, he was in much better shape than the boy had realized. And thus, Hiro began working out in earnest, emphasizing flexibility and core strength, which helped him with the bit of martial arts he still practiced. At first with Wasabi, but soon on his own, after it became clear that workout partner’s fastidiousness was going to drive him crazy. Honestly, the nightly patrols and occasional fights for his life were enough to keep him in shape, but by the time he was sixteen, he realized he had been working toward an ideal. Tadashi, at first — he hoped to grow into the sort of lean, slightly muscular, ideal his older brother had been. But now? He aimed a little broader and stronger. Maybe it was all the idealized bodies he’d seen in Fred’s comics, or maybe it was watching all those Olympics to build training programs, but something about gymnasts and their build had imprinted in his subconscious. With Baymax’s medical databanks and some expert training and nutritional advice in hand, he entered late puberty very well poised to take advantage of it.
For two years, he had worked toward that goal every day, and his body responded in a way only a burgeoning hormonal teen could. Not wanting to risk anything like steroids, he mostly ate right and took a few standard supplements, but everything he did had solid science behind it . By his 18th birthday, the long awaited growth spurt had finally gifted him a bit more in height, and he was no longer what anyone could call short: he had settled at a reasonable 5’10”. Just shy of Tadashi’s 6’, but he liked to think he made up for it by being a bit better built. He had the body most TikTok boys strove for, really — lean and ripped without being vascular or overblown. The one thing he was vain about was his abs, which were the product of lucky genetics and teenage metabolism as much as his obsessive core workouts.
But he was, in many ways, still the awkward kid brother to a much-missed Tadashi around his teammates. Science geeks above all else, none of them were particularly adept at matters of the heart, or the flesh, for that matter. Deep, mutual affection bound them, maturing past what had been initially an attempt to humor their lost friend’s kid brother. He’d proven himself to them, and to the city, and even to Aunt Cass and a handful of other mentors and authority figures. But his team shared in all the big parts of his life — just as Baymax carried that spark of his brother’s soul.
He’d gone through phases of crushes on each of them over the last few years. Gogo excited him but had no interest in boys, he learned (luckily before he said or did anything stupid), And Honey Lemon? He was pretty sure she’d been fixated on his brother, but never worked up the courage to dig deeper after found out they had dated. At some point he figured out that Wasabi was a bit of a hunk, and when he realized that, he did some soul searching and realized he was fine with that. He couldn’t see Wasabi loosening up enough to date anyone, much less get busy with them. The memory of the neat freak wiping down his gym obsessively was kind of cute, but that would be a lot to take and he knew they’d clash over that. He liked the Fred well enough but felt no attraction to him at all. Weirdly, he heard that Fred was apparently a legend around campus — his easy going nature and apparent aptitude for doing the deed meant he didn’t lack for partners when he was in the mood. Being rich probably didn’t hurt his chances, either.
The one person he had really had feelings for was Karmi, a kid genius like him. But that didn’t work out. She had moved away, and he’d been a bit emo for a while, before resigning himself to what life was already giving him. It wasn’t that bad, really. He had Cass and Mochi, and Baymax, and his friends. His life was pretty good.
*****
Honey Lemon, as usual, was solving problems with chemistry.
She’d been doing it ever since she was a teen and now, at 24, she held several degrees in it and was pursuing a third.
But this particular problem was one she had been solving in secret, terrified anyone might discover what she was working on — and in particular a specific someone.
Her bubbly personality hid how deeply she’d felt Tadashi’s loss. Always keeping group harmony in mind, she knew it would be disruptive if she ever let it spill that she and Tadashi had become lovers just a week before his untimely death.
She had been in lust with the handsome boy from the moment they met; his lean and rangy body and his deep brown eyes, his warm smile. He was just sexy and oblivious to it. But as they became friends, she noticed his underlying scent and it activated something primal in her. She’d obtained some of his sweat once (for science!) and had run a detailed analysis on its components. Nothing stood out, just typical pheromones and the results of various scented body washes and shampoos. She’d done DNA sequencing on his hair, too. All for fun, but also with the aim of finding out what in his biology made her so unbelievably attracted to him.
When they’d finally admitted their mutual crushes late one night in the lab, she had found herself so aroused it was painful, and she practically jumped the boy. He was just as enthusiastic, and his scent became even more enticing, and they made love on their second date. And then she got a real surprise, because sweet and wholesome Tadashi was blessed with solid 8.5 inch uncut dick and apparently bottomless testicles.
In just a short 8 days, she had stolen several shirts and a pair of boxer briefs from him, even a pair of socks. And she had several vials of his spunk, too, stored away in the deep freeze. She knew it was weird and obsessive, but there had to be some answer for why she literally couldn’t get enough of him. Thus, science.
And then he’d been killed, and then Hiro and Baymax showed up, and …. Well, it’s one thing to be a part time grad student working on a second doctorate, and another to be part time superhero. She was fond of the kid and empathetic about his loss. Then he grew up, and she noticed a familiar scent whenever they trained or fought together. When she realized Hiro was headed down the same path as his older brother, physically, she surreptitiously ran some tests.
Hiro was seventeen at the time, and struggling with his frustration at being the little guy on the team. He’d been working out and eating right and all that. What harm could there be in helping him as only she could? And so, the biochem genius began her program to help build a better Hiro. He loved his brother and missed him so much, maybe even more than she did. What if she could bring the brothers closer?
Boosting certain hormones was child’s play to her, but she was concerned about dangerous nanotech getting out of hand, so she instead focused on simpler stuff. And she had enough of Tadashi’s dna and samples to work from — their genetic potential was much the same and she had the know how to influence how those genes played out. Any tinkering could be explained by normal hormonal changes at his age. A small dose here and there wasn’t too risky, and she was patient.
Within six months it was clear that it was having some effect, as the boy’s frame filled out and his voice deepened. The scrawny kid brother was getting pleasingly beefy. But best of all, his scent slowly changed, coaxed along by natural changes in his biochemistry and the introduction of elements she introduced through other means. It wasn’t Tadashi’s scent, but it was similar. And it was starting to have a similar effect.
The day after his 18th birthday — they’d been busy saving the city all night again and had missed the party Cass arranged — the team was exhausted, and they’d gone to Fred’s to change after the fight. Having a friend who had so many bathrooms was handy. But Hiro had passed out right there on the sofa, and whatever he was dreaming about must have been sexy. She saw a distinctive outline in his suit that brought back other memories.
And then Fred had walked in, and chuckled “nice boner, man,” waking up the embarrassed teen. Neither of them noticed her, however.
Her practiced eye had estimated a healthy 6 inches. She smiled, knowing she could help.
*****
In the shower, Hiro had a growing problem. He wasn’t complaining about his size, not really, but over the past year he had grown four inches in height…and four inches in length. He was overjoyed when when overtook Gogo and was no longer the shortest member on the team. He was happy when his penis hit average territory. But as he continued to growl, he increasingly found his bulge inconvenient. And the demands of his body were annoying. He blasted an enormous load and then switched to cold water, hoping to soften up his problem before he joined Aunt Cass for breakfast.
“You have another. Erection.” Baymax said, as Hiro toweled off. “Your extended adolescent growth spurt has placed you well above average and your hormone levels are high. In addition, your. Masturbation. In the shower has not appreciably eased your arousal and discomfort.”
“Baymax! Please! You can’t just blurt that stuff out!”
The robot cocked his head sideways, evaluating. “Scanning. Your body chemistry has altered.”
“Yes, puberty, I know.”
“While not abnormal, your recent changes have created embarrassing situations for you. These are common in your age group, as are fears of inadequate. However, you have nothing to be ashamed of. Your dedication to fitness and nutrition has left you in admirable condition, and your latest growth spurt has placed you in a rare percentile. You are conventionally attractive and compare well with others in your age and economic and social group.”
“Thanks?”
“You appear to be struggling with feelings of embarrassment, and shame is often encountered by young adults as they mature sexually.”
“You don’t say,” Hiro said, pulling on some underwear that, he suddenly realized, were no longer up to the task.
“You require new undergarments to properly support your genitals. I suggest you choose a larger size, or consider specialty garments to accommodate your size.”
Hiro blushed.
“Your penis is quite large, even in proportion to your testicles,” the robot observed. “It appears to be in good health.”
“It’s fine. It’s not a problem.” Hiro said, adjusting himself. “I’m not that big, am I?”
“Your penis averages 15 centimeters when flaccid, but reaches 25.45 centimeters when fully erect. This is statistically quite rare.”
“How rare?” Hiro wondered aloud.
“According to literature, one in approximately 500 million,” Baymax replied.
“Wow,” Hiro aid, quietly. “No wonder I have felt so strange.”
“Your testicles are similarly large,” Baymax said. “Perhaps once your puberty subsides, you will be more comfortable. Until then, it is not advisable to be in public while erect. It is considered taboo in your local culture and may invite unwanted negative encounters with friends and family.”
Great. He’d gone from being the skinny shrimp to being a little too big. And he was still hard.
“Do you require assistance?”
*****
“What?”
“You are still suffering from a painful erection and you are expected for a meal shortly. I am aware that you recently masturbated, but despite the release you appear to remain aroused. Do you require assistance?”
“What do you mean, assistance?
“Among the stores of medical knowledge is an extensively library from the Kinsey institute, as well as resources associated with sex therapy from various sources. There are numerous techniques to manage unwanted arousal. I can access many.”
Hiro laughed nervously. What the hell!?
“Your. Nervous. Laughter. Suggests discomfort with the concept of me assisting you. Am I correct in this diagnosis?”
“It’s a little weird, yeah…”
“When Tadashi built me, he intended for me to serve in many therapeutic capacities. He limited many of these subroutines as irrelevant or unsuited for broader use, and locked those subroutines when he prepared to submit the prototype. After consulting with his instructor, he decided to place certain options behind a setting that requires a legal adult to authorize them. You have been a legal adult for nearly a year.”
Hiro’s mind reeled with possibilities.
”Baymax, I am your patient. I am of legal age.”
“Your statement is accurate,” Baymax replied.
“Now,” he said, locking his door, “I am suffering from acute sexual arousal and have been unable to satisfy my needs. What treatment do you recommend?”
Hiro’s 19th birthday was fast approaching, and he had no idea how we was going to spend it. Or with whom.
Spending the last several years fighting supervillains and robots and whatnot with his team and his buddy Baymax, while also dealing with all the fun and awkwardness of puberty, had shaped the boy genius into a young stud, something he was only obliquely aware of. He still measured himself unconsciously against his perfect, but deceased, older brother, and while he mostly had made peace with it, the desire to be someone Tadashi would be proud of still buzzed along as an undercurrent to, well, everything. It was almost as though he were driven to make up for that loss by being as awesome as his brother, on top of being the best he could be as Hiro.
When it became clear that his frail kid body was a liability in his superheroics, he put that big brain of his on the task. Having access to state of the art labs and a team of college geniuses with various specialties meant he was very well equipped to capitalize on whatever nature saw fit to give him, and then some. And so over the past five years, he’d grown from a scrawny five foot tall 14-year-old to a healthy, strong, and well built young adult of 19…one who’d also been engaged in superheroics every night for five years.
After one particularly demanding battle about a year into their superheroics, he had talked Wasabi into showing him around the gym. The big guy was naturally burly, and his aversion to germs meant he worked out at home — and as an appreciative Hiro discovered, he was in much better shape than the boy had realized. And thus, Hiro began working out in earnest, emphasizing flexibility and core strength, which helped him with the bit of martial arts he still practiced. At first with Wasabi, but soon on his own, after it became clear that workout partner’s fastidiousness was going to drive him crazy. Honestly, the nightly patrols and occasional fights for his life were enough to keep him in shape, but by the time he was sixteen, he realized he had been working toward an ideal. Tadashi, at first — he hoped to grow into the sort of lean, slightly muscular, ideal his older brother had been. But now? He aimed a little broader and stronger. Maybe it was all the idealized bodies he’d seen in Fred’s comics, or maybe it was watching all those Olympics to build training programs, but something about gymnasts and their build had imprinted in his subconscious. With Baymax’s medical databanks and some expert training and nutritional advice in hand, he entered late puberty very well poised to take advantage of it.
For two years, he had worked toward that goal every day, and his body responded in a way only a burgeoning hormonal teen could. Not wanting to risk anything like steroids, he mostly ate right and took a few standard supplements, but everything he did had solid science behind it . By his 18th birthday, the long awaited growth spurt had finally gifted him a bit more in height, and he was no longer what anyone could call short: he had settled at a reasonable 5’10”. Just shy of Tadashi’s 6’, but he liked to think he made up for it by being a bit better built. He had the body most TikTok boys strove for, really — lean and ripped without being vascular or overblown. The one thing he was vain about was his abs, which were the product of lucky genetics and teenage metabolism as much as his obsessive core workouts.
But he was, in many ways, still the awkward kid brother to a much-missed Tadashi around his teammates. Science geeks above all else, none of them were particularly adept at matters of the heart, or the flesh, for that matter. Deep, mutual affection bound them, maturing past what had been initially an attempt to humor their lost friend’s kid brother. He’d proven himself to them, and to the city, and even to Aunt Cass and a handful of other mentors and authority figures. But his team shared in all the big parts of his life — just as Baymax carried that spark of his brother’s soul.
He’d gone through phases of crushes on each of them over the last few years. Gogo excited him but had no interest in boys, he learned (luckily before he said or did anything stupid), And Honey Lemon? He was pretty sure she’d been fixated on his brother, but never worked up the courage to dig deeper after found out they had dated. At some point he figured out that Wasabi was a bit of a hunk, and when he realized that, he did some soul searching and realized he was fine with that. He couldn’t see Wasabi loosening up enough to date anyone, much less get busy with them. The memory of the neat freak wiping down his gym obsessively was kind of cute, but that would be a lot to take and he knew they’d clash over that. He liked the Fred well enough but felt no attraction to him at all. Weirdly, he heard that Fred was apparently a legend around campus — his easy going nature and apparent aptitude for doing the deed meant he didn’t lack for partners when he was in the mood. Being rich probably didn’t hurt his chances, either.
The one person he had really had feelings for was Karmi, a kid genius like him. But that didn’t work out. She had moved away, and he’d been a bit emo for a while, before resigning himself to what life was already giving him. It wasn’t that bad, really. He had Cass and Mochi, and Baymax, and his friends. His life was pretty good.
*****
Honey Lemon, as usual, was solving problems with chemistry.
She’d been doing it ever since she was a teen and now, at 24, she held several degrees in it and was pursuing a third.
But this particular problem was one she had been solving in secret, terrified anyone might discover what she was working on — and in particular a specific someone.
Her bubbly personality hid how deeply she’d felt Tadashi’s loss. Always keeping group harmony in mind, she knew it would be disruptive if she ever let it spill that she and Tadashi had become lovers just a week before his untimely death.
She had been in lust with the handsome boy from the moment they met; his lean and rangy body and his deep brown eyes, his warm smile. He was just sexy and oblivious to it. But as they became friends, she noticed his underlying scent and it activated something primal in her. She’d obtained some of his sweat once (for science!) and had run a detailed analysis on its components. Nothing stood out, just typical pheromones and the results of various scented body washes and shampoos. She’d done DNA sequencing on his hair, too. All for fun, but also with the aim of finding out what in his biology made her so unbelievably attracted to him.
When they’d finally admitted their mutual crushes late one night in the lab, she had found herself so aroused it was painful, and she practically jumped the boy. He was just as enthusiastic, and his scent became even more enticing, and they made love on their second date. And then she got a real surprise, because sweet and wholesome Tadashi was blessed with solid 8.5 inch uncut dick and apparently bottomless testicles.
In just a short 8 days, she had stolen several shirts and a pair of boxer briefs from him, even a pair of socks. And she had several vials of his spunk, too, stored away in the deep freeze. She knew it was weird and obsessive, but there had to be some answer for why she literally couldn’t get enough of him. Thus, science.
And then he’d been killed, and then Hiro and Baymax showed up, and …. Well, it’s one thing to be a part time grad student working on a second doctorate, and another to be part time superhero. She was fond of the kid and empathetic about his loss. Then he grew up, and she noticed a familiar scent whenever they trained or fought together. When she realized Hiro was headed down the same path as his older brother, physically, she surreptitiously ran some tests.
Hiro was seventeen at the time, and struggling with his frustration at being the little guy on the team. He’d been working out and eating right and all that. What harm could there be in helping him as only she could? And so, the biochem genius began her program to help build a better Hiro. He loved his brother and missed him so much, maybe even more than she did. What if she could bring the brothers closer?
Boosting certain hormones was child’s play to her, but she was concerned about dangerous nanotech getting out of hand, so she instead focused on simpler stuff. And she had enough of Tadashi’s dna and samples to work from — their genetic potential was much the same and she had the know how to influence how those genes played out. Any tinkering could be explained by normal hormonal changes at his age. A small dose here and there wasn’t too risky, and she was patient.
Within six months it was clear that it was having some effect, as the boy’s frame filled out and his voice deepened. The scrawny kid brother was getting pleasingly beefy. But best of all, his scent slowly changed, coaxed along by natural changes in his biochemistry and the introduction of elements she introduced through other means. It wasn’t Tadashi’s scent, but it was similar. And it was starting to have a similar effect.
The day after his 18th birthday — they’d been busy saving the city all night again and had missed the party Cass arranged — the team was exhausted, and they’d gone to Fred’s to change after the fight. Having a friend who had so many bathrooms was handy. But Hiro had passed out right there on the sofa, and whatever he was dreaming about must have been sexy. She saw a distinctive outline in his suit that brought back other memories.
And then Fred had walked in, and chuckled “nice boner, man,” waking up the embarrassed teen. Neither of them noticed her, however.
Her practiced eye had estimated a healthy 6 inches. She smiled, knowing she could help.
*****
In the shower, Hiro had a growing problem. He wasn’t complaining about his size, not really, but over the past year he had grown four inches in height…and four inches in length. He was overjoyed when when overtook Gogo and was no longer the shortest member on the team. He was happy when his penis hit average territory. But as he continued to growl, he increasingly found his bulge inconvenient. And the demands of his body were annoying. He blasted an enormous load and then switched to cold water, hoping to soften up his problem before he joined Aunt Cass for breakfast.
“You have another. Erection.” Baymax said, as Hiro toweled off. “Your extended adolescent growth spurt has placed you well above average and your hormone levels are high. In addition, your. Masturbation. In the shower has not appreciably eased your arousal and discomfort.”
“Baymax! Please! You can’t just blurt that stuff out!”
The robot cocked his head sideways, evaluating. “Scanning. Your body chemistry has altered.”
“Yes, puberty, I know.”
“While not abnormal, your recent changes have created embarrassing situations for you. These are common in your age group, as are fears of inadequate. However, you have nothing to be ashamed of. Your dedication to fitness and nutrition has left you in admirable condition, and your latest growth spurt has placed you in a rare percentile. You are conventionally attractive and compare well with others in your age and economic and social group.”
“Thanks?”
“You appear to be struggling with feelings of embarrassment, and shame is often encountered by young adults as they mature sexually.”
“You don’t say,” Hiro said, pulling on some underwear that, he suddenly realized, were no longer up to the task.
“You require new undergarments to properly support your genitals. I suggest you choose a larger size, or consider specialty garments to accommodate your size.”
Hiro blushed.
“Your penis is quite large, even in proportion to your testicles,” the robot observed. “It appears to be in good health.”
“It’s fine. It’s not a problem.” Hiro said, adjusting himself. “I’m not that big, am I?”
“Your penis averages 15 centimeters when flaccid, but reaches 25.45 centimeters when fully erect. This is statistically quite rare.”
“How rare?” Hiro wondered aloud.
“According to literature, one in approximately 500 million,” Baymax replied.
“Wow,” Hiro aid, quietly. “No wonder I have felt so strange.”
“Your testicles are similarly large,” Baymax said. “Perhaps once your puberty subsides, you will be more comfortable. Until then, it is not advisable to be in public while erect. It is considered taboo in your local culture and may invite unwanted negative encounters with friends and family.”
Great. He’d gone from being the skinny shrimp to being a little too big. And he was still hard.
“Do you require assistance?”
*****
“What?”
“You are still suffering from a painful erection and you are expected for a meal shortly. I am aware that you recently masturbated, but despite the release you appear to remain aroused. Do you require assistance?”
“What do you mean, assistance?
“Among the stores of medical knowledge is an extensively library from the Kinsey institute, as well as resources associated with sex therapy from various sources. There are numerous techniques to manage unwanted arousal. I can access many.”
Hiro laughed nervously. What the hell!?
“Your. Nervous. Laughter. Suggests discomfort with the concept of me assisting you. Am I correct in this diagnosis?”
“It’s a little weird, yeah…”
“When Tadashi built me, he intended for me to serve in many therapeutic capacities. He limited many of these subroutines as irrelevant or unsuited for broader use, and locked those subroutines when he prepared to submit the prototype. After consulting with his instructor, he decided to place certain options behind a setting that requires a legal adult to authorize them. You have been a legal adult for nearly a year.”
Hiro’s mind reeled with possibilities.
”Baymax, I am your patient. I am of legal age.”
“Your statement is accurate,” Baymax replied.
“Now,” he said, locking his door, “I am suffering from acute sexual arousal and have been unable to satisfy my needs. What treatment do you recommend?”
