and i've had sex with a couple of guys with pretty small dicks and it's been great....although i have found you get plenty of smaller guys with the whole 'short man syndrome' who think they need to compensate by being rougher and fucking harder....and that just doesn't work at all....
we don't live in the porn industry, good sex is about intimacy, being attentive, communicating, working together, not performing in some imaginary movie, and trying to please your partner (and by that i don't mean giving them what you THINK they need) and not just yourself....except with meaningless anonymous encounters, dick size comes way down the list...