Not much interest or history in sex of any sort.

For a couple of days he'd lost himself in sex.

They paid off in sex and thought that was enough.

But men are still more likely to be interested in sex.

Then, after a while, I simply lost interest in sex.

I don't think young women are all that interested in sex.

Most of the animals now showed no interest in food or sex.

I seem to have developed a sudden interest in sex.

My father decided I must have some experience in sex before our wedding night.

I mean, he's not a boy who's ever shown much interest in sex.