So Is It True That Men Whose Dads Cheated Are More Likely to Follow Same Path?

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If you're worried that your guy is a cheater, you might want to check his dad's track record.

A team of Czech researchers found that men whose fathers have been unfaithful while they were growing up are likely to pick up the same behavior themselves.

Women, on the other hand, weren't significantly affected by their mothers' infidelity.

Lead scientist Jan Havlicek and his team looked at 86 couples, asking each partner separately about their feelings and attitudes toward relationships and sex as well as their family histories with infidelity.

Researchers found that good-looking sons of handsome fathers were more likely to cheat. Meanwhile, pretty women who had beautiful mothers aren't necessarily going to be "unfaithful." Instead, they're just likely to be selective when it comes to choosing a significant other.

Since men's main motivation in a relationship is sex, he will likely stray if his "appetite" is unsatisfied and he wants more sex or sexual partners. But if a woman cheats, it's because she isn't happy with her significant other or her relationship, the researchers said.

The expression "like father, like son" has never sounded so bad -- until now