I got a perfectly fitting story for this topic, it is not too long either (ha ha, right?).

When i was 21, i met a girl which i was really into right from the first moment. 2 weeks later she stayed at my place. Right in the middle of my duty in Downtown she starts going "oh my god oh my god oh my god" - sounding like something is wrong. I get up and ask what's wrong, she replies saying "shut up, go on". After we were done she wanted to explain it. Her ex-boyfriend of 5 years, the only one she had sex with yet, was the craziest looser you could imagine. She told me about how she was on the phone with her friend while he was taking her doggy and how he never lasted more than 10 minutes. The guy basically couldnt get her aroused for a single second and the thought of going down on her grossed him out. Don't know how you can be that stupid. Anyways, she was absolutely in shock of what we had in our first night and basically couldn't believe she missed out on all of that for so long. About a month later, we were together, we met her ex in the city. Yada yada yada, she laughs and loudely starts talking about his 3 inch dick and his missing stamina. She tells him that i, totally embarrassed of the situation, am going down on her 5 times longer than his intercourse lasts and how she loves to suck my 7 inch dick for days.

I feel incredibly sorry for the guy because he is a god damn looser, i was incredibly proud of me and my dick anyways and still am. But to answer your question in all honesty, the way i act in bed got me WAY further than the size (which really is not that much more than average).

A very good friend got a 11 inch sausage. I can tell you, it isn't all that fun. He actually struggles with staying hard long enough and some positions just make no sense. Also, he had a few girls passing on the sex because of his size. On the other side he is the #1 booty call for a few freaks.