Are you peeking under my skirt pervert?

Is this how a proper boyfriend behaves? Staring at her girlfriend's best friend, hoping for a flash?

I can see the bulge under your jeans, so no point denying.

She can come in any time, but I think we have time for a fun little game...

Take out your cock, and stroke to the beat of the metronome. But you cannot cum, until I tell you to.

I will tease you with my body, with my voice, with my moans. But you won't cum until I say so.

Otherwise I'll tell her everything. And with your load, you will blow your relationship, pervert.