Trevor drifts over the dozing blond youth, as the door closing behind him provides a bit of a draught. He feels the air swelling inside him as he heats up from the steam condensing on his rubbery body. It feel like he's going to explode. His head bumps into the tile wall just beyond the reclining youth, and he is punctured. The loud explosion causes both the donkeyman and the blond to open their eyes. Red hot molten rubber rains down on the blond kid encasing him in a red rubber cocoon. He struggles briefly and grows stiff with his mouth open in the shape of an o in surprise.
The donkey man gets up and walks over awkwardly to check on his steam room companion. Parting the steam, he laughs. It's not a person at all, but a big red plastic sex doll. He pulls off the white towel from the former-blond's waist, and reveals an anatomically correct doll. He fails to notice the Speedo drop out of the towel, as he drops it to the floor.
"I thought you were real! But I'm kinda glad you're not. I sure am horny," the donkey man says fondling his huge cock. "It's a good thing you're made of rubber and can stretch!" He adds forcing his cock into the now inanimate blond's open mouth.
Then bracing himself against the tile, the donkey man startst to use his new toy. Each thrust is accompanied by a bray. Each bray is accompanied by an additional transformation of the donkeyman. His nose and mouth fuse to form a muzzle, coarse gray hairs cover his body, by the time he orgasms he is all donkey.
As the hooved beast tries to pull out of the rubber doll's mouth, he discovers he's stuck or maybe the rubber melted? He pulls in and out in and out, each time his cock comes out farther but it's now coated with red rubber. As he continues to work his cock out the donkey fails to notice that each inch he pulls out results in a square foot of his donkey hide being encased in rubber. So by the time he pulls completely free, his two foot cock and his entire body are made of red rubber. He starts to feel empty, and begins to float off the steam room floor. He hangs helplessly in midair. Below him the rubber sex doll begins to convulse, like there is something inside trying to get out. As the donkey man watches, Trevor's fingers pry the red rubber mouth open from the inside. Trevor's hands then arms are thrust through the stretched opening. He opens them like scissors forcing his way out. His head and shoulders emerge as the donkey balloon stares in amazement. Trevor looks down at the blond's hot body, even if it is rubber, and discovers that the boner he's having is making it hard to get his waist out of the doll's mouth. It takes nearly 10 minutes for it to go down enough for Trevor to pull himself free. He's embarrassed and pleased to discover that your condomized body is still on his dick. But since he doesn't want to be rubberized again, he gently rolls you off his cock.
"Now where to put you?" he wonders as he stands naked in the steam room. "Aha!" He gently rolls you over the red rubber sex doll's permanent stiffy, then he puts on the speedo he finds on the floor. He picks up the sex doll, and wraps its midsection with the towel. Then he grabs the string hanging from the donkey balloon, and exits the steam room.