Sex.

You could almost say sex is like a rose. If i passed a rose around the room and everyone took a petal, by the time it reached towards the end of the room, there'd be nothing left. That's how sex works. When you decide to have sex with someone, you're giving a part of yourself to them. You never get it back, and if you're throwing yourself at too many people, there's just going to be nothing behind it anymore.