I'm 24 now, bisexual and in the military (deep closet, lol). But you'd be surprised, especially way back in basic training how many supposedly "straight" guys were willing to experiment with another guy for horniness sake.
Like this one guy I had a major crush on who was also my night guard partner. We all showered together naked, and boy was he packing...anyway, we became good friends and he found out I was bisexual. He was straight, had a girlfriend writing him letters every day and whatnot, but one night during night guard, as youn guys often do, our conversation turned to sex.
Which led to him pointing out that I was making no attempt to hide the fact I was gawking at his hardon. We joked about it, and he soon remarked after 6 weeks of no sex he was horny as hell and was going to go to the bathroom and rub one out, to which I joked "Need an extra hand? After all with your eyes closed a mouth on your "member" feels good regardless of gender.", knowing he was straight, as he reiterated to me time and again.
But this time I was in for a surprise. After walking down the hall, he came back a minute later and said "You know, that offer sounds good...I'll take it." Well, we quicly made haste to a bathroom stall, and I went down on him like a white house intern, and I swear he must have had a gallon stored up for me.
It was a bit awkward the enxt few days after, but then he decided to keep it a regular thing, always just me blowing him, no reciprocation, but it was great. i still talk to im to this day, and he got married after basic training, and claims he's neer been with nor will be with a guy again, but it was fun for the time.
On a different note, when i was living in a Group Home, I also had a friend turn into a fuck buddy of mine, a hot puerto rican friend with a good 9 uncut inches on him....It's funny how quickly he was willing to progress form jerk off buddies to fuck buddies. He claims I made him bisexual,lol...but that's another story for another day.
All that aside, Has anyone else ever broken in a supposed straight guy/gay sex "Virgin?" I personally find t so much more of a turn on and very very hot.