Try to take her thong off.
From Create Your Own Story
You move behind Kara on the couch and hook your fingers into the side of her thong, slowly pulling it down off of her to reveal the rest of her wonderful ass and an amazing shaved pussy. She pauses briefly as you do this, but Matt's hand continues to hold her head on his cock, where she continues to suck him, ignoring the loss of her panties. You hold them up to examine them and smell a wonderful musk. Matt gives you a thumbs up with his free hand and motions for you to hand him the panties as his other hand continues to guide her bobbing head. He sniffs them and high fives you.
You look back down at Kara's tiny slit surrounded by puffy lips and the excitement grows within you... although you still feel like a douche doing this to your best friend's little sister with him passed out just a few feet away.
What next?