Deciding he'd fare better earning the gnoll's favor than trying to fight them as a gnoll, Lef tilted his muzzle to the waterskin and drank whatever mixture was within. It tasted like concentrated sweat mixed with sour cream and garlic. Lef almost choked when the shaman poured the entire waterskin down Lef's throat, forcing him to take several urgent mouthfuls of the mixture. As quickly as the gnolls appeared and gave this blessing, they continued down the path without paying any heed to the guardpost or Lef.
Lef stood up, staring with a blank stare as more drool and musky mixture dripped from his now complete gnoll muzzle. The smells of sweat and gnoll musk were getting overwhelming combined with the sweaty aftertaste in Lef's mouth. Feeling dizzy as his vision blurred, Lef caught himself on all fours. Swaying left and right, Lef was lost in a swim of sweat and dizzying smells as his body began to be affected by whatever the shaman gave him. Lef's body bulked up even further, growing well past 300, 400, 500 pounds. His muscles continued to swell even larger, pushing Lef into bestial territory. The swaying creature looked like a beast, not a gnoll at this point, and would likely stand over 8 feet tall. As Lef shook himself, countless sweat drops were flung from his body as it puddled below his paws. His body was hardwired to grow, sweat, and stink. In a dizzy haze, unable to fully focus, Lef began to move on all fours in a slow, clumsy motion. He was almost in a daze as he lumbered aimlessly, slipping over his inflated, sweat-covered pawpads.
In Lef's mind, he was thinking of continuing his request to clear the gnolls out. Unconsciously, his body was following a very particular smell which begun to waft in the air. This musk smelled different, but so unique, that Lef's body subconsciously was drawn to it. In Lef's mind, he thought he was silently sneaking through the gnoll's ranks when in reality, a 9 foot long canine beast was slobbering, panting, and growling as it stumbled through the castle ruins. The other gnolls paid the beast no mind, and Lef was completely unaware of the dozens of gnolls he was blindly passing in his monstrous form. Lef had forgone all human attachments, and was a naked beast coated only with his own naturally bristled fur. His genitals were fitting for his new bestial form, hanging low like a horse's dick. Lef's cock was now a monstrous 16 inches long and thick as a flagon with an enormous canine knot to boot. Lef's new watermelon shaped balls where churning and pumping concentrated gnollish hormones in combination with musky pheromones to further confuse the former human. His shaft was erect and uncontrollably sweating and leaking precum, leaving a trail of sweat, musk and cum as he moved. Lef just kept growling to himself, as he was almost lost in a daydream of himself fighting all these gnolls himself.
After an hour or so of mindlessly following this scent, Lef reached a cave hidden away inside the castle ruins. Still in his stupor, Lef stops at the entrance to the cave as his new canine eyes adjust to the darkness. The smells from within hit Lef like a wall of wind and his pupils dilate completely. Lef suddenly starts panting and his thoughts quickly are overwritten with one thought "cum". An inkling of humanity inside Lef however, was desperately trying to rebel as his physical body betrayed his will. Lef saw countless other bestial gnolls like himself, chained up and being kept like livestock as gnoll tribesmen were seeing milking the beasts for their semen. The musky pheromones coming off his fellow beast gnolls was concentrated in this room, and was likely keeping all of them in a permanent, stupefied haze. However, this discovered came far too late as Lef's body had already entered to the middle of the chamber, his canine cock and balls screaming for attention and he froze, waiting for the gnolls to milk him.
Internally, Lef was screaming to try and will his body out. Gods know how long these beasts have been kept as milking slaves and beasts for these gnolls! He needed to run, and get back to where he was to undo this!