When I was at uni, my gf once sucked me off in front of like 5 people as a dare at a party. everyone had to put their phone on the table and then she did it. To this day the horniest thing I've ever done.

It wasn't like a porno, there had been dares and stuff that were just getting wilder and wilder, but it was awkward and tense and just so sexy, I could hear them breathing. 

The dares had been stuff like flashing, telling secrets, letting someone send a text from your phone, that sort of thing. My gf had told the girls I was big so they wanted to see it but I said there was no point because it's not hard. So the guys said her dare could be to suck it then everyone gets what they want.

She freaked out a little afterwards. There were some tears but a couple of hours later we fucked on the way home in a park and it was so intense. You could tell we were both still pumped from it.