The next day Cole wore a Large sweat shirt. He sits down in class as the teacher explains that the zoo field trip was that day. Cole forgot about it, but he already submitted the approval from his parents. They all get on the bus as one of the kids stares at Cole. Cole just looks away, hiding his changes.
The bus arrives at the zoo. Cole starts to feel very hot from his sweater, but still leaves it on, starting to sweat slightly. He follows the other students around the zoo as they approach the African plains exhibit. Cole can barely take it anymore as he starts to feel almost weak, but very strong. His muscles start to clench and hurt. He feels burning sensations all over his body. He cant take it anymore as he pulls off his sweater, revealing his muzzle and large chest fur. He starts to pant heavily as the students point and laugh at him. Holding his stomach he feels his hand start to grow pads and large thick claws.
He notices a zoo attendant opening the outer enclosure as he rushes in trying to get away from the students. He closes the door behind him and runs to the next, pushing with all of his might he slides the next door open. Not knowing it lead to the Lion enclosure.
Cole was standing in front of all the students from his class as he buckles over in pain, his ears stretching to the top of his head as his pants rip away from his rear expanding. The students are pointing and laughing away as he looks at them, wanting help he presses his other hand to the glass as it quickly changes to a paw as well.
The fur starts to race up Cole's arm as his chest expands even more. Long fur sprouts all over his head, starting to form a thick mane. He starts to quickly gain weight from the new muscle and large bones as he falls to his knees. Pain comes from his butt as a lions tail starts to push its way out slowly, his anus pushes out slightly as well as he students stand in awe, but still laugh at Cole. His testicles dangle and grow fur on them as well.
Cole stands up on his haunches as he starts to breathe heavily, grunting loudly and attracting the other lions. The male lion comes quick to see. As Cole is frightened, the fur rapidly makes its way from his butt, to his neck. Standing there on his back legs, they quickly fill in with thick muscle and tawny fur, the male lion watches his tail snake its way out and complete its growth. The male lion walks up and starts licking at Cole's rear as he starts to get excited. The male lion walks over Cole and mounts him and starts thrusting at him. Now the students are laughing hysterically as the Lion enters Cole's rear. The fur quickly engulfs Cole's belly as his body fills to the size of a Lion. Cole now being railed, is now a full grown, mature Lion. The other lion cums deeply into Cole as Cole's lionhood presses its way out. Thick strands of lion seed spray out as Cole slides his huge body to the ground, being mated and taken by the other Lion.