Why do men cheat on their wives for no apparent reason?

Some guys will stick their dick anywhere. A girl being 5'3" and 200 pounds is just gross, but she still has a pussy and that's all some guys need.

it can be several reasons:

1) not attracted to the person there with currently
2) no "spice" in the relationship
3) there a pervert
4) they don't get ANY (or not "good enough) sexual attention

just because the person is fat or ugly doesn't mean they don't get any. that just means they won't get with a hottie, like vin diesel ^_^

It sounds like she's lying to me.
Trust me, my "friend" is of the same description, and she said that she slept with the stereophonics?
Yeaah.

And to answer your question-- a guy wouldn't! There are many reasons why a married man would cheat - but he'd have to be attracted to the girl. why would you have sex with someone you didn't find attractive unless you were desperate? I'm thinking since he's probably happily married he's not desperate.

I smell a liar!