MY FIRST DIRTY POST!!!!

Smarter kids (or kids more involved in schoolwork, I suppose) have less sex than the others.

See this and this.

On the other hand, boredom and free time often results in, um, some sort of sexual activity. So obviously hard working kids have less available time. That is, if I recollect correctly.

And, aw nuts, this is a post about sex, so here's a little iCandy....