What do you do?

Chase them and strip them both.

As the sun sets in the park, you decide to change up the game. You suddenly run at Jenna, grab her, push her down, and rip off her pretty dress. Your girlfriend is stunned, staring at you. Her little sister starts to run away through the trees, but you chase her down, leap out at her, and rip her dress off too. It's fun, you're so much faster and stronger than the two girls are, you can do whatever you want to them. As you are pinning Jessie down, you notice Jenna, beautiful and naked in the twilight, trying to run away through the trees. **** them both at once will be a fun challenge. You grin, and chase after her.