Nod

You nod, and as if on que the two both dive in passionately kissing you. This assault broke your fragile mind even more, lips, tongues, and teeth locking with your lips, your throat, and where that felt good. You had never seriously kissed your sister before, only as a joke or for photos for cosplays, but never with passion like this. Even then, her Mistresses passion could still easily cut through, expertly drawing and holding attention whenever she chose, and letting you two revel in the debaucherous kissing when she chose to ease up.

This goes on until you feel like you could bust, filled with lustful passion forced into you. When they finally break off you, your brain and Bodley feel like a melted puddle. Mistress giggles, saying “looks like you are just as cute a slut as your sister. I had brought a surprise, but I’m sure she’d prefer you to enjoy this…”