Francisco's mind swam in pleasure as he continued to stroke his still-hard dick, the results of the orgasm making the experience more pleasurable. As his pleasure incresed, so did the tempo of the spell. His hair thickened, his legs and back lengthened, and his muscles bulged larger and larger. But all of this was lost to Francisco who could only focus on the plesasure in his groin. He began to let out a deep moan.
---
Ric and Josh had been searching through the Book, when they heard Mr. Mendez orgasm in the bathroom. Ric knew what had happened, Josh didn't, and both were curious. They moved slowly toward the bathroom door that was ajar. As they pushed the door open, they heard a deep growl that could have been coming from an engine. When the door opened they were both hit with a stench and heat that made them want to run, but curiosity made them stay.
In the bathroom, they saw what must have been Mr. Mendez, much bigger than he had been before. His huge feet were braced against the wall, while his broad back was pushed against the opposite wall, so there was nothing underneath supporting him. He was covered in hair and his muscles bulged out all over the place so it was easy to see each individual one. Last of all, they notice his dick, which was huge and hard, and his large hands that were going up and down it while his hips bucked slightly in rhythm.
Josh was in shock, but Ric noticed that Mr. Mendez was still growing, and that the parts of the wall where his growing feet and broadening back were pushing was cracking. Mr. Mendez took a deep breath through his nose and his brow wrinkled. He subtly slowed the pace of his pleasure.
"Mr. Mendez?" Josh squeaked. The large man immeadiately stopped what he was doing and turned to look at the source of this sound and smell. The boys saw nothing of the face of their beloved teacher, and everything of a wild animal. The growl had changed from pleasure, to that of a deeper anger. The beast that had been Mr. Mendez was slowly getting out of his position, never taking his sharp eyes off of the two boys. Ric grabbed Josh's arm, and whispered, "Run!" And they were off, tearing through the house afraid of the thing they were sure was chasing them. Ric lead Josh out of the house and into the woods behind it, still cluthing the Book, and desperately hoping that the beast wouldn't pursue them too far.