>be me, 18, senior in high school
>see my sister's boyfriend in the school parking lot
>he's making out with some cute blonde girl
>they stop and walk to his car
>he's grabbing her ass
>they get in
Do I tell my sister that her boyfriend is cheating on her?
Also, how the hell is this guy picking up girls like this? He's fucking ugly
He will just lie to her and she will believe him and call you a jerk for making up mean stories. He gets the grils because he tells them what they want to hear and nothing else until hes done with them.
You should have filmed it. Anyway just tell her what you saw. There is no right way but the truth.
>>18722056
>Ugly man picking up girls
What was his car ? Is he rich ?
>>18722101
He's middle class
Just a Corolla