In the 7 inch range, cut. (according to Shane's podcast)
probably a vers bottom (in the podcast Shane referred to him as a "hole" and Garrett agreed; he's made some references of being a bottom in some other videos as well. Although I think he can be vers because a very fem YouTuber did a story time about a date they had - that was later corroborated by Garrett in another podcast.
Nothing saucy really happened, Garrett seems to be the type of gay that doesn't fuck on the first date.
In some other video with Shane he mentions that his "down there" area was a mess in relation to grooming - so I'd bet natural bush.
In a very old vine he made a passing joke about masturbating every day, he could be only joking but I wouldn't put it past him.
I bet younger Garrett got way more dick than today. He seemed to be more confident in his handsomeness and referred to "getting a lot of dick in the rooftop of a Jamba Juice" so take that as you wish lmao
From what he's talked about his dream man, it almost always is an older, good looking, ripped, hunky type of man. But in general he seems to be pretty open about dating different types of people.
About the smell - in more recent months he's been on a self improvement journey and that included taking showers every day. From what I've seen of his recent pictures he seems to be doing good.