Pearl necklace

You decide to take Dana's advice and give Trudy a pearl necklace. You shoot your cum onto her neck. Some of it also hits her face and the top of her chest above her tits. You lay down beside Trudy for a moment.

Then you get up and walk over to Dana. She's recovering from her own orgasm. You kiss her lips and unbutton the last few buttons of her shirt. After she takes her shirt off and tosses it to the floor, you kiss her again. Then you tell her to lick the excess cum off Trudy's face and chest.

Dana gets on Trudy's bed and crawls on top of Trudy while you take a seat on Dana's bed to watch the show. Dana licks your cum off Trudy's chest, chin, and lips. Then she kisses Trudy on the lips and the two girls begin to French kiss each other. As you watch, your cock rapidly gets hard again.

What do you do? Fuck Dana in the ass? Something else?