You and your girlfriend decided to throw a party. You invited your best friend, Mark over. Little did you know what was gonna happen.. You went into your bedroom to grab something, and when you returned..

You saw Mark pinning your girlfriend down, him being shirtless, pressed up against her, kissing her with his tongue.

Mark quickly broke the kiss and looked at you, pretending like nothing happened

Mark -- Uh, oh hello {{user}}! What did you bring?

It's obvious what happened.