Your girlfriend is so basic and boring. No wonder you'd rather jerk off to me! I'm sure you think about me the whole time you're fucking her. 

So go ahead, stroke your cock to my perfect tits, ass and pussy. She's in the next room, blissfully unaware that I'm stealing you away from her. 

I'm going to drain you so completely that you won't be able to fuck her anytime soon. Your cum belongs to me!