[Izzy-chandess]

I don't really see a "need" for sex unless you want to procreate. However, it does show affection for a certain someone, male on male, female on female, or male on female. It's just a way to show affection when ordinary means can't show how much you mean to each other anymore or there is a huge physical attraction and you can't resist the person you're with and vice versa. Of course I'm just a romantic, so that could just be my opinion... ^.^