You're both done with her

Finally drained, you pull out of Lyndsey's ass with an audible pop. She gives a liquid whimper as she slumps against Len, then rolls off him, her holes gaping and pink from the assault of your cocks. She lays panting, looking at the two of you, her pretty face sheened with sweat, her breasts heaving delightfully as she gasps.

"That's a good little bitch," you tell her, patting her hip as you get off the couch. "Took it like a champ." She says nothing, just nods, still panting as she gently touches her pussy and ass, both holes oozing cream.

"Yeah, you fine," Len adds, squeezing one of her tits and tweaking a stiff nipple. She moans, looking at him with feral eyes as though waiting for the two of you to ravish her again. You pull your clothes on, looking at the girl and contemplating options. She's a ripe little fuck, and you have an edge on her that's well worth exploiting.

The question is how to make the best use of her.