Sex always seems like a good idea—until it's not. She may be beautiful, but there are certain stereotypes (five red flags, actually) that can make you regret giving in to your impulses—big time.
But it's not just the girl you need to be cautious about. There's also a time and place where sex just isn't a good idea, for your health, relationship, and overall wellbeing. We've highlighted a few you should know about.