Is it wrong for a guy to want to sleep around and have lots of one night stands?

I get called a "man whore" because i like to have casual sex and one night stands with random girls. Sometimes i don't wear protection (depending on the mood) and luckily i haven't caught anything, but a girl once got pregnant because of our one night of passion and now i actually have a 2 year old daughter because of it, but I can't help sleeping around is that wrong?? I don't just sleep with any women, I try and choose reasonably attractive women with nice bodies (I stay away from fatties) what is so bad about me doing this? I'm 22

I do pay for my daughter and I look after her once every 2 weekends.