After some torment, you deny her release.

You look her straight in the eyes...and decide to think about it.

"I'll consider it," you say, teasing her, "Don't cum until I say that you can. If you do, the consequences will be dire."
"Y..y...yes, master," Donna says, her voice quivering.

You continue to just stare at her for another minute, her body struggling to 'hold back the tide.' You won't let her cum just yet.

"Please, master- may I cum?!?
"No...not yet."
"Please please please- I need to cum!!!"
"I said 'no,' ****," you say, "You cannot cum."

Donna bites her lip and struggles to hold back her orgasm. Tory, for her part, is not letting up on licking her. If she wasn't working with you, she might lick her less...but she's not.

After another minute of her struggling not to orgasm, you slowly stand up and walk behind her. She turns to follow you, but is suddenly caught off-guard. You grab her bound wrists and pull her up to her feet.

For her part, Tory tries to pull her head up to keep licking Donna. You put your right foot down on her belly, causing her to stop.

"Naughty girl," you say, "Just for that I'm going to fuck you in the ass. First, however, I'm going to fuck this slut."

Surprisingly, Donna tries to appease you by turning and rubbing her pussy against your exposed cock. You give her a look.

"Please fuck my pussy," she says, "But don't fuck my ass. I'm saving it for my future husband."
"How sweet," you reply, smacking her ass lightly, "Fuck me good and I'll consider it. The better you do, the more pliable I'll be."
"Yes, Master."

You press your dick into her quickly, causing her to grunt sharply. You push your dick all of the way in her. She's keeping herself loose, no doubt due to your earlier words. She wants to please you- just out of fear. Whatever works.

She begins to moan loudly as you fuck her. You hold nothing back, pounding her like you're trying to tenderize meat! Given how you made her hold out her orgasm mere moments ago, she's really sensitive as well.

"Fuck- I'm going to cum," Donna cries, "PLEASE let me cum, Master!"
"You can cum when I reach a count of five," you reply, rubbing her ass.
"Yes, Master. Please hurry."
"One. Two. Three..."

You reach down and rub her pussy, finding her clit. She shrieks at the extra stimulation, but still doesn't cum.

"Four..."

With your other hand, you pull it to your lips and wet your middle finger. As Donna's ass thrusts back at you this time, you jam that finger right into her asshole! She grunts loudly at your back-door entry, shocked and suddenly-filled!

"Five. Cum for me, bitch!"
"Fuck fuck fuck fu-u-uck! I'm cum-ming!!!"

You enjoy watching her give up all pretense of fighting you and just orgasm shamelessly. It's a beautiful sight.

As she cums down from her ecstasy, you move both of your hands to her hips to hold her up.

"I think it's time to fuck an asshole," you say, licking your lips, "The question is who's do I pick?"