Keep making out with Kara
From Create Your Own Story
You smile a little into the kiss, shrugging your shoulders at Adam. If he didn't want Kara to hook up with you, he shouldn't have agreed to watch porn. Did he think you and Kara would sit around awkwardly while he fumbled around with Shayla? Fuck no! Now he can't stop you from fooling around with his sister; that would mean he would have to stop being with Shayla. It couldn't have gone better for you.
Adam seems to realize that as well, and goes back to assaulting Shayla with his tongue. You focus back in on Kara, kissing her hard and nibbling on her lips. She moans into your mouth, loud enough for the room to hear. You can tell she's still trying to put on a show, but you want her to get real pleasure out of it, too.
