They needed a study to tell them this?

Why do people have sex?

It feels good.

No shit, Sherlock.

College-aged men and women agree on their top reasons for having sex - they were attracted to the person, they wanted to experience physical pleasure and "it feels good," according to a peer-reviewed study in the August edition of Archives of Sexual Behavior.

Look for upcoming studies on Why Water Is Wet (Answer: It's made of water) and Why Pain Hurts (Answer: It's made of pain.)