Let's just see what happens.

Without alerting the slut you give the couple a sly wink and continue to half dance, half buck your hips into the slut's mouth. The girl in the couple undoes both his and her jeans, slipping one hand into each as the two of them ogle the sexy spectacle before them. He pushes her tshirt up, exposing both tits, and starts to maul them. Soon his cock is too hard to remain hidden and she is stroking it out in the open.