You decide to surprise Emma with a big family dinner.

Since the holidays are getting close, and it's the season of family togetherness, it's time to really put your control to the test. You want to give Emma the Christmas gift you know she wants in her heart. Organizing everything without her getting wind of it is a true labor of love, or maybe lascivious lust. You trade messages with both your parents and Emma's, getting a number of sexual propositions from both and brushing them off like a true professional. Once the date is selected and the housing arrangements confirmed (you imagine the two sets of parents might run into trouble staying in a hotel with so many other people, but that's a problem for them), you make a plan to get Emma out of the house for the day while you get busy in the kitchen.

The plan is to have dinner laid out when Emma gets home, then have the parents all arrive just after. You tell Sophia that you're planning a surprise for Emma and you need her occupied while you set it up, and she's more than happy to help you out. Sophia is a good friend like that, always trying to make sure people around her are happy. Hopefully Emma's urges won't be too much of a nuisance. You've learned the hard way that she's a handful when she's horny. But you trust Sophia to keep her in check, since she's enough of a prude that she'll work extra hard to keep Emma out of trouble.

Once that's taken care of, you crack your knuckles and get to work. If things go smoothly, there will be some sexy fireworks to watch.