At first, it seems like your girlfriend's friend is trying to be kind. You're going on a double date that night and she shows up a little early under the guise of telling you how you can be a better boyfriend.
Things take a turn when she convinces you to show her your cock. She laughs at how small it is and determines that your relationship can't be saved.
You get hard while she's laughing at you. That's when she decides that you'd be much better served being her bitch. She lays out exactly what you'll do as her bitch, including preparing your girlfriend's pussy for her boyfriend's cock, cleaning them both when they're done fucking, and much more.
Your life is about to change.