Mitch looks at Karissa, so full and inflated. Her donkey body straining with air. Her legs had long ago swelled out straight and were now slowly being overtaken by her expanding belly. The whole sight of her is soon too much for Mitch. He would have been drooling (that is if he still had any fluids left inside of him.)
With shaky and wobbly legs, Mitch walked over behind Karissa. He lowered his head and sniffed her. Had she still been a flesh and blood donkey, there would have been a most inviting smell, at least to Mitch.
Mitch prodded Karissa's tail then her opening right below it. Karissa shuddered involuntarily. Mitch looked again at Karissa, full and bloated, then he positions himself behind her. His large, inflated donkey member erect with air and desire, poised before her opening. Mitch paused only a second before plunging it in. It gave a loud, long squeak as Mitch pushed himself all the way inside Karissa.
Karissa let out a pleasurable bray, Mitch's eyes fluttered in passion. Mitch flopped fully onto Karissa's back and straddled her large body with his front legs. Mitch started to pull out of Karissa and to pump back into her. Each thrust seemed to become harder and harder. Karissa was becoming tighter and tighter. The air compressor was still pumping Karissa up more. She was slowly becoming a round, ball-like donkey.
Karissa's tightness felt so good to Mitch, he kept thrusting harder and feeling an increasing sense of pleasure. Mitch was soon lost in his passion and pleasure, Karissa was being pleasured by both her increasing pressure and Mitch's pumping.
Mitch began to pump harder and faster, then...