Your father invites you and your girlfriend over to celebrate Thanksgiving at his place. You notice he’s a little handsy with your girlfriend, maybe a little too familiar. Then she lets you know that things have changed quite a bit and that she’s actually been having a secret relationship with him. And here’s the big reveal: she’s going to fuck him right in front of you on Thanksgiving. You don’t know whether to be upset or to take your cock out and jerk off to this new arrangement.