As Jacob slipped into the farmhouse, he felt tingles rushing up and down his body, from his head to his feet. The feeling of the bull's cum in him remained, even though some of it continued to slide down and out of his ass and down his leg. He hurried through the house, hoping that there wouldn't be too much of a stain on his leg from this. IF he waited too long, it would be way too obvious just what he had done in the barn, and he didn't want his uncle to get suspicious about what he enjoyed.
The tingles continued with every step, the sensation following them shifting from plain strange to very, very good. So good, in fact, that he started popping a woody as he walked to the bathroom. It felt so hard, just as hard as he had been under the bull, and it took all of his willpower to not stop on the stairs and whip it out, stroke himself off.
Finally he reached the bathroom, and he just couldn't stop himself. Almost ripping off his clothes as he shut the door, he grabbed hold of his cock to start jerking off.
Then he realized something. It wasn't his cock.
Protruding from his groin was an almost exact copy of the cock that had been up his ass almost a minute ago. It was thin, and long, somehow longer even than the bull's cock that you had taken. Beneath it were massive, purely massive balls, swaying with every movement that you made.
What was the freakiest thing, however, was the fur that was slowly spreading out from your groin, getting thicker and spreading further with every pulse and tingle that continued to flood through you.