Hope she doesn't tell

A flurry of thoughts flies through your head in mere seconds. Is this really happening? A trifecta with two daughters and their mom in the same day!? Is this some sort of trick? A test? But the prevailing thought in your head is that you've already cheated on your girlfriend with her sister today and cheating on her with her mother on the same day would be hitting an all time low.

"I'm sorry Mrs. Allen, you're right. Having sex with Nicky was wrong, but going down on you to keep that a secret would only double-down on my mistake. I know that after what I did to her, I'll probably lose her, and that's something I'll have to live with."

"At least you passed that test David." she says, standing up and smoothing her dress back down. "Unfortunately, I don't trust you enough to stay in a relationship with my daughter. I'd rather not deal with the drama of having the girls fighting at home so I'd prefer you just break up with her instead of telling her you slept with her sister. I don't care what excuse you give, but I'll only give you until tomorrow to do it. After that, I'll have to tell her the truth. If you care about her as much as you say you do, you can at least let her keep her relationship with her sister."

Realizing she's probably right, you agree to her terms, get dressed, then leave as quickly as possible. That night, you call Tia, giving her some lame excuse about wanting to be with other people and that the two of you don't have the "spark" you're looking for. Tia rapidly goes through several stages of grief with her reaching anger in a matter of minutes and ending the conversation by calling you a string of profanities then hanging up crying.