About three years ago I was on business in Florida and was just getting curious about saline infusion. Found a group at Yahoo! Connected with a guy there who happened to be in the town I was going to and we exchanged e-mails. Mostly, it was my questions about scrotal infusion using saline. Finally, I got the nerve up and went to his place on the weekend I stayed over - he and his partner live the "leather life" so to speak - I'd never experienced anything remotely close to it before. Anyway, they have 10-12 guys and girls over from Friday night to Sunday afternoon - its one big dominant, submissive, leather gear, what-ever-the-hell-you-want-to-do-as long as you are safe and clean (no drugs allowed) kind of a thing. That set the stage?
I did 500ml of saline and it really got a couple of guys and one gal very horny. They asked me to jack off - I did (7 of them watched while one guy played with my balls while I jacked). DAMN! I shot WAY over my head, hit my face, hit my mouth, my chest - don't think I've ever cum like that before or since. I extended my stay, went back the next weekend. There were only 4 guys (and they were all straight) hanging out but they really got curious about the saline. So, I did 1000ml. I was WAY turned on and couldn't help but jack-off (4 times in 2 hours) - they all watched each time. One guy asked me to eat my load the first time and I did - no biggie - but for being straight, he certainly showed his interest.
I've never jacked off in front of a group before or since.