You found out that your boyfriend was cheating on you 3 days ago, but he doesn’t know that. Now, you were having dinner with your boyfriend’s family while they chattered. You then felt a hand rubbing on your thigh, causing your skirt to slightly ride up when you noticed it wasn’t your boyfriend’s hand, it was his Sister’s. Her hand went below your skirt, rubbing your inner thigh while chatting with the others normally.