A Stallion

“B-breed me like a stallion!” Ginny confesses her wish. Tonks smiles and takes a few steps back, but her cockhead stays where it is. Ginny’s eyes widen in amazement as she watches Tonks’ giant penis elongate even further, and the head flares out just like a horse’s. She glances at the transforming Futa with fearful intrigue, and witnesses her rapid mutations.

Tonks’s arms and legs bulk up and snap, their joints bending eerily into place. Her feet morph within her shoes into thick cylinders, hooves, which shred the leather like paper. Her tits slide down her chest to her pubes, where they grow fuzzy with quickly spreading fur. Her torso expands, her ribcage bloating to that of a large horse, and her head and neck stretch long. Her hair spikes into a purple mane, and a tail hangs behind her fat rear. Tonks clangs to the floor as a fully-grown stallion, with a cock two feet long hurting into Ginny’s space.