The other day, I had a hankering (as I said on Twitter, and isn’t that a great word?) for what I termed “gay tryout” stories. What I mean was stories featuring a guy who’s never been with another guy asking a gay friend to, well, break him in, for want of a better phrase. These would probably be considered a subtrope of “gay/out for you,” though I was specifically looking for guys who already know they aren’t straight. A story that turns the trope on its ear is good, too. Naturally, I’d want the guys to end up together. 🙂
I got a lot of interest and several suggestions, some of which I’d read and some of which I hadn’t, so I thought I’d share the list here. You’ll notice a lot are college stories, which isn’t surprising. I’ve added brief descriptions to the ones I’ve read. If you know of more that you think fit, please feel free to share in comments and I’ll add them!
Wanting by Piper Vaughn: College-bound guy asks older brother’s gay best friend to take his virginity.
Campus Visit by Stella Huerto: College guy comes out as bi to his gay best friend and asks if he’ll be his first male lover.
Blame it on the Mistletoe by Eli Easton: Straight college guy teaches his virginal roommate to kiss… and more.
Love Lessons by Heidi Cullinan: Promiscuous college guy “breaks in” his virginal roommate.
Frat Boy & Toppy by Anne Tenino: College TA teaches a closeted student all about gay sex.
His Roommate’s Pleasure by Lana McGregor
Broken Boundaries by Evangeline Anderson
Bonds of Desire by Lynda Aicher (M/M/F)
shaeconnorwrites 
I just finished rereading Broken Boundaries. It’s the most awesome story. I defy anyone not to like it.
I love sci-fi, but this story transcends genre. You don’t need to be a geek to read it. The guys are gorgeous, just so lovely.