Make a wish

By your wish, her anal retain its tightness, but also becomes much more elastic. You invade your entire manhood in one swift motion. Joe groans in surprise, but not in pain. You enjoy new sensations for a few seconds and then start fucking her tight ass. At first, your dick moves only one or two inches and you get more and more horned. You're increasing speed and amplitude of your hard rod movements. A couple of minutes later, you screw her ass like a jackhammer. You take your dick out of her butt, leaving only the knob inside. And in the next moment you drive all rock hard cock inside her butthole. Again and again. Faster and faster. Joe quietly growls and desperately rub her pussy.

When you come to the limit, you penetrate her hot tightness as deep as you can and start to cumming. Powerful stream of your sperm bursts inside Joe. At the same time she reach orgasm, Joe clenches her teeth trying not to make much noise and falls on the table. Her body shivers and her pussy's juice flows down her legs. Your stream runs dry and Joe calming down. You pull out your flaccid cock and start to change Joe.

At first she grows to 5'11" tall. The muscles change next, they become a little bigger and significantly harder. Then you improve her reflexes and stamina. In conclusion, you give her three gifts: firstly, her eyes changes from pale gray-blue to bright green with 20/20 vision, secondly, her breasts growth from a firm B-cup to even more firm C-cup, finally her throat becomes the perfectly adopted to fucking as her backdoor.

You're cleaning your dick and entire crotch with a towel and hold out the second one to Joe. After wiping herself, she walks over to the full mirror and freezes in admiration:

"I had a beautiful body, now it's perfect."

Joe joyfully bounces and delivers a series of very quick punches in front of the mirror. Then she hugs and kisses you. Her firm tits are pressed against your chest and your hands squeeze her strong muscular ass.

"Thank you, John. You gave me exactly that I wanted."

"Also, if you want, you may use my cum as undetectable doping." You wink her.

"You're such kinky smartass." You hear her fun chuckles. "I will think about your yogurt later."

You hear a knock on the room door. Your sister's voice is heard through the door:

"John, I heard a noise. Are you OK? It's time to go or we'll be late for the bus!"