Yes, fuck me

Karl looked at his former body, tall and lean with strong hands. His thoughts were seriously affected by the estrogen in his brain. He was very attracted to Mandy's new mental residence, and looking down at his current form, he could feel a tingle in his groin and nipples. The thought of his new body getting fucked by his old body was getting him very horny.

In answer to her question, he started to unbutton his shirt; he fumbled with the buttons until he figured out that they were reversed from what he was used too: the buttons were on the left side of the shirt and the button holes were on the right. Mandy had come wearing a pretty, lacy black bra, which was now revealed. "Yes, please make love to me, Mandy," he said with her higher voice. He could feel his nipples getting rigid inside the bra cups, and, as he watched, they made little bumps in the surface.

Mandy drew the shirt off of his shoulders. Her body's light pink skin attracted her, and she kissed his shoulder. Karl moaned as her lips made his skin burn with pleasure. The swell of breasts in the bra made her blood race, so she reached behind the doctor to unhook it. She took the lingerie off and gazed intently at the fine pair of her own breasts hanging before her. She leaned forward and sucked one burgeoning nipple into her mouth. Its warmth delighted her, and it got harder in her mouth with every second she sucked. The doctor groaned again. He looked up and started unbuttoning his own shirt from his body and smiled when he saw the lightly muscled chest with a bit of hair on it. He stroked that chest and rubbed lightly on the nipples. It was Mandy's turn to moan this time. The vibrations tickled Karl's breast and sent a jolt of sexual electricity straight to his cunt. A warm and excited feeling spread from his pussy in a wave.

He pulled the shirt off and started unsnapping her pants. Mandy felt the tug at her waist and quickly stripped off her pants and underwear to unleash her swelling cock. She marveled at the look of it, all stiff and red; a drop of pre-cum sat poised on the tip.