I don't base relationships on sex. So if the dates went well, and you were really nice, who cares if you're bad in bed? I wouldn't care.

Good F'ing God, give him another chance, the way it sounds is that you're asking if you should leave a guy just because "he didn't perform very well" in bed with you. If that's the case then you need to give some serious thought as to what you want in a REAL relationship, it shouldn't be about the sex. If I was with a girl that sucked in bed, but was a great person otherwise I wouldn't leave her. But if the basis of a relationship is about sex then there is a problem. Sorry for being so blunt and harsh, be it sounds like you're asking if its ok to leave a guy just because he is not good in bed.

I'd give him another chance. I would try to compliment him on the positive aspects of his sexual performance and give him tips or suggestions for future encounters. I wouldn't dump him unless he consistently failed and didn't try to improve.

If his character is underendowed and underperforming, move on. If its his body you are talking about, that isn't as important as the above. You shouldn't be having sex with him until you know his character well.

I would give it another chance. I think the first time with a new mate can be a little nerve wrecking on some people. He could have been nervous. Plus I think the more you get to know someone and the more comfortable around that person you are the better sex gets.

hmmm give him another chance if you like him see if maybe he was just nervous!! If its still kinda sucky the 2nd time you might wanna find someone else who can umm satisfy you better

Yeah give it another chance. Most guys seem to mess up the first time, they're probably somewhat nervous about being good enough. If it turns out to be bad all the time thats another story.

Well, many men have first time nerves, especially if they feel they are under-endowed, so I'd give him another chance. My feeling is that huge penises are a turn-off anyway, anything of 5ins or so I can live with and I suspect it would make such a difference if it was smaller - plus there is far more to pleasing a woman than the penis. I once had a first encounter with a man who was very nervous - he kept on turning his face away when I tried to kiss him, telling me he would take me home and although he let me touch him, he stopped me before I could complete, as it were. I didn't give up, even though I was embarrassed because he made me feel like a female rapist :-) The only first-time deal-breaker for me is absolute selfishness. Put it this way, the man who never so much as touched me 'down there' but wanted foreplay on him to last for ages, then said afterwards "I hope you enjoyed it because I did" and intimated that he could feel me coming during intercourse when I definitely didn't and nor did I fake because I don't - he was out the door and didn't get a second chance. Some men make the sexual experience completely about them. Those are the ones you move on from.