Inside her

You ram your dick as far down her throat as you can while she gags horribly, spurting your cum down her throat and covering the inside of of her mouth as you pull it back to her mouth. She pops her licks around her and sucks the last of the cum from your cock before you pop your dick out of it. She groans, half-gargling thanks to your cum sitting in her throat, before swallowing and licking her lips, as the others all finish cumming inside her as well.

You quickly wipe off your cocks, standing over the exhausted, cum-covered prostitute, unsure of what to do next.

"Do we go?" someone asks.

"Yeah," Lukas says.

"Thanks for this," Daniel says. "I appreciated it."

"Yeah, thanks," Lukas says. "Although it is admittedly a bit weird. Is it OK if we just don't talk about how we kind of fucked each other? Dicks were touching there."

"Uh... yeah, you're welcome and that, but let's avoid mentioning this. Let's get the fuck out of here," you say.