"For your transformation, you'll become a bull anthro. You'll have a 2 foot smelly cock with basket ball sized balls full of hyper fertile cum, an extremely muscular body weighting 400 pounds of pure male bull muscles. Your body will become hairy and your lust for me will be uncontrollable. You will also have the tail, horns and ears of a bull. For your dare, you will use the curse back on me before you change to turn me into a cowgirl, with 2 pairs of J cups with 4 teats which shall be refered as udders, that will be full of milk, an real cow udder below them, a fat 700 pounds body, a cow's tail, horns and ears, as well as black and white fur." Jen climbed onto the bed and kissed Mike passionately while rubbing her pussy, almost reaching the edge of cumming already. This was gonna be so hot.
"Jen..." And Mike proceeded to finish his dare, and both their transformations began as they came back to kissing and rubbing each other.
First, Mike could feel his cock growing each second, and the smell getting stronger and muskier, in a good and sexy way, as his balls inflated and parted his legs as they grew. His body hair was increasing, along with the muscles begining to grow and expand beyond what he thought was possible. The bed started making cracking sides as he began weighting more and more. Soon, he was basically covered in black, short fur and his cock had 30 inches in size, poking Jen's breasts, as she was on top of him.
At the same time, Jen's boobs began to expand and her new pair began forming bellow it, as they got full with milk. She felt the muscles building and the fur growing on Mike's body underneath her, and her stomach began to bloat and turn pink, as her udder expanded, creating more space between them, the pressure making milk come out of her and pleasure ran through her body. Mike's growing cock poked her udders, making both of them moan as the milk made it lubed up and the arousal grew in both of them.
By now, Mike's cock grew to 1 feet already, as his ball were now being pressed against Jen's pink udder flooding cold milk on them, making him shiver and moan. His tail, horns and ears gave the finishing touch to his body transformation. And his lust was in the extreme already, but suprisingly grew even more as he lost all logical thoughts and grabbed Jen's expanding hips and butt and, with an absurd strength, lifted her and hammered his cock all the way inside her pussy. Both screamed in pleasure as Jen orgasmed instantly.
Jen's stomach bulged as his cock went so deep inside of her, the fully grown 2 feet tearing her apart with pleasure and lust, so raw and strong she almost passed out. As they both panted and screamed in pleasure, the bed shook and made cracking sounds with their growing weight, until it was on the verge of breaking, the two massive lovers fucked like literal animals at the end of the world. Jen's moans became moos as her transformation finished, leaving her full of white fur with black spots, massive udders, tail, horns and cow's ears, and hornier than ever before.
Their bodies were in sync, as they fucked their own brains and souls out of their monstrous bodies. The screams of pleasure and the rubbing of their genitals were the only thing that mattered to them, as they both orgasmed. Cum flooded the fat cowgirl, making her belly bulge even more as milk sprayed in all directions and her body couldn't handle taking anymore cum and it leaked with pressure from within, wetting all over the place as well. Their orgasms eased them up a little, but they kept on fucking even so, extending the orgasm to 20 minutes, eventually getting everything off the system and laying in their now broken bed(room) on top of each other, as their breathing began to decelerate...