Better Perform

She sat down hard on it, slipping it all the way into the balls. You gasped loudly, the warm, wet feeling of her wet pussy massaged the months of pain from the hard cage walls. She hadn't been fucked in at least two months, so it was tight and wet, and your balls felt incredible as they nestled against her crotch.

Katie was insatiably horny, and ground down harder against it to attempt to get some stimulation out of the 6cm length, grinding her perfect ass against your balls, pleasure shooting all the way along your cock as she grabbed your head and hugged it to her chest to help her ride hard and fast, which she did so like a wild mule.

Your face was buried in her gorgeous, golden breasts, one on either side of your head, and pressed up against your face by her arms that squeezed, and your first erection in months was being milked by her warm, wet pussy walls which squeezed and tightened around it with unbelievable strength, undulating and rippling as it milked your cock from base to tip as her asshole grinded against your balls, and her perfect, soft, full ass cheeks rubbed against your legs.

"Sissy.. I'm- I'm gonna-"

You came. Overwhelmed and flooded with ecstasy as though ridden by Aphrodite herself, your once useless cock exploded in its first real orgasm in almost a year, your hips bucking up against her perfect ass as you buried yourself in her wet pussy and emptied your balls, moaning a scream into her tits as you spasmed and orgasmed inside of her.

Finally the wave subsided. And your cock began to shrink inside of her as your little load leaked out and down your balls.

You pulled your face from her tits and looked up at her.

"Ah... I... I guess I should have expected that..." Katie said, trying to smile kindly, "... We weren't supposed to be doing this... this is completely against the rules..."

"I know, but it's ok... we can try again, I-I love you." You stammer, seeing her frustration.

"I love you too Sissy" She said, "But this is against everything, its not how our relationship is supposed to work... I... I was just so horny..." She said the last word with a certain grit in her voice. "Just... so, fucking... Horny..."

She began to grind again, this time quite violently, digging her nails into your shoulders. "I've just been so fucking, FUCKING horny." She started humping viciously, rubbing her clit against your pelvis and crushing your limp cock agains you.

"Ah, fuck, Katie, ow." You stammer. "Katie that hurts, I can't get hard again like this."

"You can't get hard again at all, I slipped viagra in your wine, a whole viagra, and you barely got whole hard once."

Your mind was reeling, your cock really was just a decoration at this point, but it was the least of your worries.

Suddenly you realized the weight on your pelvis was beginning to crush you, Katties arms, shockingly strong, now pinned yours to the bed. "Hey, Katie, slow down I don't think-" Katie wrapped a hand around your throat. "Shut it Sissy, I need to cum!"

She thrusted against you, harder and harder as the weight increased even further. Suddenly you realized you were looking up at her with a craned neck, her big tits swinging over your head as she straightened up.

"Katie what the fuck is happening??"

Katie now towered over you, and her body began to ripple, her slender figure became strongly athletic, imposing and toned like an Amazon, her fit, strong arms pinning you to the bed as she ground your puny cock to dust.

She suddenly stopped, and pushed herself back up and onto her knees, on which she stood taller than you would at full height. "Katie I don't understand!"

And then you did. She knelt there in her full, imposing figure, toned, muscled, yet still beautiful, her facial feature stunning, but more defined and predatory, and her breasts doubled in size, maintaining their round, fullness. At the midsection of this intimidating, tower of sexual prowess, grew a long, thick, meaty cock. That grew and grew into her hands, and when it finally stopped, she let it go to fall to the floor with a heavy THUNK.