Very briefly. For now.

You get up from the bed and roll Cindy over. She tries to get up, dildo still sticking out of her pussy, but you gently push her back down. "Trust me," you tell her. She tried to say something in response, but it was muffled by the mattress. No matter.

You return to your place between her legs and start working the dildo slowly in and out again while you take a good long moment to appreciate her deliciously round ass. Then you lean down and kiss it for good measure. With Cindy now certainly sufficiently distracted, you reach down with your free hand, pull down the front of your pants and underwear, and begin jerking off.

Just in case Cindy still has enough of her wits about her to realize what you're doing, you speed up the movements of the dildo and lick all around where it enters her again and again and again.

You were already pretty worked up by the whole situation, but the need to hide what you're doing means it's taking a little while to get yourself close to cumming. Cindy sure doesn't seem to mind, however. She's buried her head in her pillow, shouting curses into it as you continue relentlessly fucking her with the toy.

Finally, finally, it's time. You let go of your throbbing dick and grab the bottle of lube you used early, squirting a liberal amount onto Cindy's asshole. Before she gets a chance to ask, you shove three fingers in, spreading the lube around and warming her up for what is about to come. That seems to satisfy her curiosity, and she returns to screaming into her pillow with renewed vigor. Then, you make your move.

You crawl forward, line up your cock with her now well-lubricated ass and push in. Cindy jerks in shock, but you place your hands on her shoulders and shift as much of your weight onto them as you can, pinning her in place. Meanwhile, you're now balls deep in Cindy's tight ass, and begin pounding her like a jackhammer. You're so close. Just another second or two now...

"What are you... No! Stop!" Fuck, here it comes! You drive yourself all the way down inside her. "Get the fuck off of me you-" She stops talking the moment you shoot your first pulse of cum deep inside of her. She had been jerking her body this way and that, trying to buck you off without success, but now instantly goes limp. "Fuck yes! You're mine now!"

You let yourself fall on top of her with your dick still lodged inside. Consumed by your own orgasm you hadn't noticed it before, but Cindy is cumming as well! You feel her quivering all along your body and hear her whimpering. After a couple of seconds to catch your breath, you get up from the bed to admire your handiwork. Cindy is still sprawled face down on top of the sheets, a mess of sweat, heaving breaths and disheveled hair. You've certainly done a number on her body, now let's see about her mind.

You let your pants fall the rest of way down your legs. Then, trying your very best to sound imperious, you say "****!". In a blink of an eye, Cindy transforms from being the very picture of exhaustion to that of an eager-to-please servant, on her knees in front of you. "Yes, Master?"

Oh, fuck, this is going to be good!