The seat of her panties

Since you just came, it takes you a while to cum again.

It's a little awkward, masturbating like this while other men have sex with butts right nearby (two at a time now, they've been encouraged to go, so that you're not here all night).

Four men have finished and two others are on their way when you finally near your climax again.

You fish through the bag for her panties, and bring the head of your cock into the seat of her panties, where her pussy will go.

She's going to be wearing these in a few minutes. You think to yourself. My cum will still be wet and warm.

That thought sends you over the edge, and you spill a formidable second load over the inside of her underwear. It's surprisingly thick, still, and so sits on the surface of the panties in little globules like sticky glue, rather than soaking in like water.

And then, while you're still enjoying the aftershocks of your second orgasm, you hear a rasping sound to your side.

The poor woman, still full of your anal creampie, is starting to leak.

Oh boy, she's gonna blow.

"Aren't you going to do something to catch that?!" You ask the officer.

"Not my job." She just shrugs.

"Wait..." A third and final awful sadistic idea enters your mind. "As long as I don't touch her, I can do what I want with this mask, right?"

"Right." The officer confirms.

"Then..."