Try to do both!

Furiously fucking Crystal's strangled facehole, you decide that you want to pop her choker AND cum. Crystal is involuntarily pulsating and sputtering, her drool flying everywhere as you pound in and out of her pallet. With one last tug of the choker garrote wire, you restrict her so that her trachea is pinned in a vice-like grip around your dick.

"I'm cumming, you stupid slut. Don't you dare pass out yet!"

She's close, that's for sure. Her face is discolored and she's flailing against you involuntarily, spasms and survival instinct. Kicking her legs wildly, only aiding your facefucking, you see rivulets of her cum streaming down her legs as she reaches her own bitch-gasm.

The sick little thing is being strangled nearly to her end, and it's making her cum!