Men are way tighter. Once you make it inside you can feel there's more going in inside a guys ass. A female friend of mine could take my girth easily- and my dick is really wide.
My male friend was closeted, and more frantic about it than I am. He and I had had several encounters over the years prior to this one. He invited me over when he knew his wife was away, and I realized I was on a date...
We watched TV for a while, then he started to play porn. I went into the kitchen for a drink and when I came back he was jerking off in his shorts. He asked me to fuck his ass, which was new- he always wanted to be on top.
I gave him some head and wow, I really loved the size shape and taste of his 4" cock. Precum was leaking out of his peehole which I enjoyed. I rubbed his cock on the side of my face as I licked his balls. I held up my cock to him and he pulled his head back.
"Oh- do you want to stop? We can stop"
N-no- I'll suck it. He was hornier than he was straight.
He was a huge 250 lb guy but a gentle ginger. His cock was smaller than mine, but hard, and it stood up at a 45 degree angle when he was hard. The simple gold chain around his neck dangled as his head bobbed back and forth- he was good. He spun his tongue around the edge of the head of my cock like he'd been doing it for years.
He turned around to offer his ass to me doggy. I placed a hand on each cheek of his considerable ass and tipped my left thumb into his warm ass. It slid in like a tight pussy and he moaned. I lubed up his ass and my cock and inched it in. It barely- barely- fit. My cock is about 2.5" wide and I've dealt with this before. Gentle pressure. He could barely speak- every time he would say something I rocked my cock deeper and he would have a hard time finishing what he was saying.
I wasn't able to get more than 3" or so of my dick in his incredibly tight ass. I've never had a pussy or female ass this tight.
I wasn't sure if I was going to be able to cum but I quickly caught the thread and had a great orgasm.