Anal for the bound slut

You spit on your dick and stroke it.

Without a warning, you push your cock into her tight asshole.

She gasps a bit.

"Oh...oh my."
"You want me to stop," you say, feigning concern, "I can just stop and leave you here."
"No! I was just...I mean...go ahead."

Dee thinks about her fellow slave who was given Free Use Forest Fuck Duty yesterday.

When she only got two loads, she spent all of this morning and afternoon tied upside down...

You smile.
She seemed desperate and horny enough for anything.

"If you make me cum really well, I'll text my two friends your location."
"I will," Dee says excitedly, "Please do."

You slowly fill her up as you feel her body relaxing to accept your entry.
Once you're ready, you start to fuck her.

You reach around the front of Dee and grab her tied tits.
You fondle them ferociously as you fuck her.

Dee cums within a minute, but you keep going.

You slow down a bit and engage in conversation.

"So does your Master fuck you like this?"
"Once a week. That's about all he can do these days," Dee says, conversing well for a woman being sodomized.
"That's not enough for you, is it?"
Dee shakes her head.