Was Carter Collins, the new quarterback for the football team. He had just finished practice, and was just coming out of the locker room when Jenny tackled him and started furiously licking his face.
"Jenny, what are you-ugh, so much drool-okay, we need to take this someplace else." He led her into the now-empty locker room and hit the lock on the door.
"How you'd get outside? Did Mom forget to shut the back door again?"
Jenny nodded.
"Well, this is just great. I still have an hour left of school, and I don't really have the time to drive you back home, and I'm pretty sure dogs aren't even allowed in this school..."
He felt Jenny scratching at his leg, whimpering softly.
Carter sighed and rubbed her head. "I'm not angry with you, Jenny. A dog like you is too stupid to know any better. I guess I can keep you here until school's over." Before he can leave, he notices the real reason she's whimpering. Her cock is fully erect and dragging on the floor.
"Damnit, Mom. Why'd we even have to get this mutant freak anyway? Just cause Dad lost his job and didn't have the heart to put her down, now I have to jack her off?" Of course, he kept all of this in his head. Instead, he carefully led Jenny by the paw over to the showers. Stripping himself down, he turned on the water and put a hand on her thick, meaty shaft. It only took a few tugs before she came, and a thick stream of cum shot out and splattered all over the stall walls. Carter did his best to wash it all down the drain before wiping the both of them off with a towel, getting dressed, and leaving Jenny all alone.
Jenny didn't know what was happening. Her human master had made her feel good, and now he was gone. She barked and howled, but the locker room was soundproofed. Eventually, Jenny decided to just plop down right in the middle of the room and curl herself up. Just then, the door opened and...