A guy isn't going to get beat up just for a one-night stand. You can bet your bedmate will bolt if he hears this red flag phrase.

Are those real?

If they don't bring it up, you shouldn't either. If you're with someone who's had plastic surgery, they're likely proud of it - and will have no problem showing it off or telling you about it. If you suspect they've had surgery, but they don't mention it, don't bring it up.{relatedarticles}

If you're wrong, it could be offensive and, most likely, mood-killing. So save yourself the trouble and keep your lips sealed. Just enjoy the view.

Thanks.

Nothing makes someone feel used more than saying "thank you" after a romp in the sack. You should both enjoy yourselves and receive mutual satisfaction. Thanks shouldn't be necessary; if they are, someone's doing something wrong.