She started to strip out of her outfit, making him a little bit more than uncomfortable seeing as his clothes were barely holding together with his new form. He blushed and started to grab her, “What are you doing!?” She turned to look at him and all he could see were hearts. The girl had nothing but lust in her eyes. “I want to ride that shaft right now.” She pulled at the waistband of his pants, and he rushes to keep them on, his boner pushing the seams to their limit. She pushes her body against his, she takes deep sniffs of him as she fights to take his pants off. James now saw that the lust was making her an exhibitionist. He tried to hold on to his pants with one hand to try and keep her from stripping further, but he ended up losing the only covering he had on his bottom half, revealing his now foot-long (and lengthening), semi-erect, equine shaft. She started licking his length up and down as she took of her shirt and undid her bra, using her mouth and her breasts to get him fully erect. His blush grew to the point it was visible through his hide. Despite how wrong it was, he couldn’t deny how good it felt, so he resigned himself into letting her have it.
As soon as she felt his resistance wane, she hopped up off of him and positioned herself to fit his massive tool into her moist and eager pussy. She moaned loudly as it pushed passed her labia and she started to take in more and more of his cock. She didn’t even get halfway before he could feel her gush all over his cock, crotch, and chest. She kept riding as he got closer and closer to climax. She finally got it deep enough down inside her as she came again, he held her in place as he prepared the mother of all loads to go into her.