I've posted this before on another forum. I was 18. College roommate, sophomore year. Great guy, close friend. Chris (think Ferris Bueller) and his girlfriend, a redhead named Felicia (think Molly Ringwald from "Pretty in Pink" ), were hanging out together, drinking way too much.
Soon, and as usual, the conversation turned to sex ... and the idea of a threesome entered the picture. After a few more beers, it seemed like a good idea ... we'd take care of her, and she'd take care of us. There was no discussion of us guys doing anything together, although I wasn't opposed to the idea. I was just starting to explore my bi side, having jacked off to gay porn from time to time.
As we stumbled back to our dorm, she got naked and tumbled into his bed. We guys stripped and climbed into bed with her, and worked aggressively together to get her off several times. After her third orgasm, she rolled over and pretended to fall asleep. Chris and I protested playfully -- "Hey, what about us?" -- so she jokingly said, "If you two can't wait until I catch my breath, you can always do each other."
Well, Chris chuckled nervously and said he'd wait. But under the pretext of doing anything for a laugh -- and having had more alcohol than he had -- I said, "OK, whatever," and pushed him backward onto the bed. Then I went down on him.
He pushed my head away, but he didn't protest all that much, so I started sucking his cock again. He immediately got into it. Next thing I knew, Felicia was kissing him and Chris was bucking his hips. It was less than a minute before he started gushing cum. (No, I didn't swallow.)
Felicia looked at Chris, then looked at me, and said she got turned on watching me sucking her boyfriend's cock. She asked him if he wanted to return the favor, and he declined, so she said she'd "pay me back." She gave me a blowjob, and I didn't last long either.
The three of us played together a few more times that year, but Chris and I didn't take things any further than that one night. He chalked it up to being drunk and in the right situation, and we never really talked about it. On the other hand, I've been jerking to that memory for 30 years.