Ty watched in fascination as Mark tried to comply, opening his eyes to steal stressed and horrified glances at giant Ty as the teen watched.
“Can I help?” Ty finally said patiently.
Mark gulped, nodded gently, and watched with wide eyes as Ty’s fingertip stroke his plump rear, slid under his anus, perking up his tail, and began to massage his large heavy balls.
Mark gasped, trembling again.
“It’s okay that it feels good, Mark,” Ty whispered reassuringly. “Don’t be scared by how you feel right now. It doesn’t make you less of a man to embrace the feelings. You can still be straight and manly. This doesn’t make you gay. I know it’s weird, and you feel weird, but just enjoy my touch. Let your new animal body feel good. Nobody ever has to know about this.”
That seemed to be the reassurance Mark needed. It was like a weight lifted off of him. He let out a heavy snort, lowered his head, and gave himself permission to enjoy the bizarre experience.
“That’s it, my handsome ass.” Ty praised him, gently circling his fingers on the little foot tall donkey’s warm sensitive balls. They began to pulsate, tugging up rhythmically, and Ty grinned ear to ear as he saw a smile forming on the donkey’s lips.
“That’s it,” Ty whispered. “Does it feel nice? Do your sensitive donkey balls like that?”
Mark nodded eagerly, brows raising, genuinely surprised by his own admission.
Ty brightened as he saw shaft start to peek out from the little sheath. “Oh, I see you like it. There’s some tip showing.”
If Mark could blush any harder he would have, but it was hard to see through his fur. He smacked his lips and his smile grew broader.
Ty reached back, still stroking the animal’s testicles, and began touching the sheath. Mark brayed his shrunken high pitched bray, his back legs shifted, and Ty grinned as cock began to emerge, rubbing the length with his finger delicately and pressing it against Mark’s round belly, helping him stimulate the deflated length.
It didn’t take long for it to feel really good. Mark let out another bray, raised his tail, and Ty felt him swelling under his finger, the length of the donkey’s manhood growing firm under his finger.
Ty gripped it gently between his thumb and index finger, rolling it, tugging it, and was rewarded with full erection. With excitement, Ty drew back, watching Mark slap his cock on his belly instinctively, and thrilled as the tip flared.
The donkey gulped, turned his head to look at Ty, and realized the teen had stopped.
“Here, let’s put you down on the floor again,” Ty whispered. “I changed my mind. I want you big again.”
This clearly excited Mark and he nodded his agreement. Completely compliant now, Ty picked up the horny little donkey and felt him squirm not with fear but with delight now, his smile still evident, as the teen set him down on the floor.
Stepping back, Ty urged him to grow to full size. Mark gasped sharply, pulling his muzzle back, and dry humped the air as he grew back to a full sized donkey once more. His cock slapped on his belly again and again.
“Ooohhh,” Ty giggled. “Somebody figured out to how masturbate this way.”
Mark nodded, pulling his muscle again and again and slapping his big black donkey cock on his belly, the length swelling, the tip flaring further into a distinctive bowtie shape.
“Can you pop it off, little buddy?” Ty urged, stroking the animal’s back and running his finger through the coarse hairs. Ty knelt down to watch the show and gasped as Mark feverishly slapped his dick up and down again and again. Each smack seemed to make it harder and fuller for a while, until he was panting and stiff, throbbing without release. Each smack seemed to increase his need, and a dribble of pre escaped.
“Not quite enough to cum, huh?” Ty giggled, stroking Mark’s belly and feeling the huge warm length of his member hit his palm again and again, bouncing off.
The leak had grown to a steady dribble, and Mark began to shift on his hooves. He turned and looked at Ty sheepishly. The teen held up his hand and smiled. Mark nodded excitedly.
Without a word, Ty reached down and began tugging the big hard donkey cock. It was so full. So tight. Mark let out several brays, his thighs began to tremble. Ty jerked from the middle of the long shaft to the head, stroking the tip with his other palm and rubbing the precum into it to slick the flesh.
Mark let out a bray, his eyes widened, and he began to pant faster.
“Gonna come?” Ty asked, smiling wide. Mark nodded excitedly, gasping, jaw dropping. He tensed. His back legs bucked.
“Ooop, ooop, our little donkey is gonna blow.”
Mark’s cock surged momentarily bigger and ejaculation followed as the pressure released. Bray after bray, squirt after squirt, his animal cock poured forth with a stream of cum that splattered onto the floor beneath him. Six or seven strong shots escaped his twitching urethra before a final cascade of juice splattered to the floor. Panting, Mark trembled and licked his muzzle, the last few squirts escaping as Ty went to the bathroom for a towel and began to mop up underneath him.
The donkey turned his head, his eyes widened, and he did something unexpected. He thanked Ty with a loving caress of his snout.
“Pretty good, huh?” Ty smiled, stroking the donkey’s head. “Of course... it’ll feel better when you’re a horse.”
Mark’s eyes widened in excitement and he nodded enthusiastically.
“Yeah?” Ty nodded back. “Wanna be a big sexy horse with an even bigger cock?”
The donkey gasped and nodded, tail wagging.