If your girlfriend's sister was cuter than her, had huge tits, loved you, and constantly seduced you with her breasts... could you resist? This is the story of a man who couldn't. Whether it's right after waking up, in the bath, or while your girlfriend is out at work... she's always there with a smirk, appealing for sex and begging, "Let's fuck, okay?" Please see for yourself whether giving in to her temptation led to happiness.