They act like they invented sex and are the only ones that know how to get it on.

That Generation Gap again; your generation thinks it invented sex.

I keep telling you: You kids did not invent sex.

In many instances the church has projected the attitude that although God invented sex he does not really approve of it.

I mean, come on--if you invented sex, wouldn't you want to brag about it too?

In fact, now that I think of it, they not only invented sex, but they also invented mutation.

"God wouldn't have invented sex except to give us a hint of what's to come if we lead the good life."

She acts as if she had invented sex.