Kate and Alex are fun-minded teenagers that think of nothing but sex. Moreover, at such an early age they try shooting their wild games on video. It drives them absolutely crazy!
Three… two… one…action!

Derek gets really turned on thinking about older guys looking at his girlfriend naked on the internet. Just the thought of it makes Derek pumped up and horny. He loves this painful pleasure, so it may well be that he's a latent masochist.