Jeri doubling over moaning and pleading no pushed away from Tom who's equine body was starting to squish her under him. She got up and to her surprise Tom was changing back to normal. "Why didn't it work?" Jeri said angrily consulting the spell book. Jeri rummaged through the information, "turn into a horse." She muttered. "Only when having intercourse with first person to have sex with!" Jeri gasped and groaned in terror. "Oh god why?" She moaned as Tom pulled her over. "You scrambled off," Tom said nonchalantly. "Why don't we continue what I started?" Quickly yet gently shoved Jeri against the closest wall and at a steady pace started to thrust his cock slowly becoming bigger into Jeri. Jeri tried to scamper away again but Tom's strong hoof hand stopped her from moving, "You broke it!" He whinnied. "You Pay for it." Soon enough Tom's full lower half was a horse and Jeri was getting the full brunt of an equine cock in her and she.