Mitch, having thoughts of donkeys, and having his wonderful girlfriend with him brought out an unconscious wish of his. The amulet glowed under his shirt and granted his wish. Cuddling with Karissa, Mitch felt a growing pressure and strain in his pants. He was turned on with Karissa with him and his mind on donkeys.
The pressure grew beyond normal. Mitch squirmed and shifted position, but it did not relieve the pressure. He was very turned on by the tightness of his pants, but the strain turned to pain. Karissa finally noticed Mitch was in pain and looked at him in concern.
"Mitch, what's wrong?"
"I...I don't know. I gotta get out of these pants!" The pain was increasing as Mitch's member strained against his pants. He unbuckled his belt and watched as the size of him made the zipper go down. Karissa gasped at the sight of Mitch's member, straining out of his pants and boxers. The pain was momentarily relaxed until his member swelled and grew right in front of their eyes.
Mitch moaned in pleasure and pain and tried to pull off his pants. Karissa helped and together they managed. Once freed from the constraints, Mitch's member popped up and out, hitting his chest. Karissa gasped again, looked at the size of it. It was a good fifteen inches long, very thick and a dark brown.
Karissa touched the throbbing flesh lightly. Mitch moaned, feeling the touch magnified by his new member.
"What's...what's happened to you?" Karissa asked, curious and a bit concerned.
"It's a...a donkey's." Mitch blushed and began to explain about the amulet, and his new found desires.
"You've got an amulet that grants your wishes, and you wished for this?" Karissa pointed to Mitch's now black and very bestial member. Mitch could only nod.
Karissa was being either very open minded or wasn't sure how to react as Mitch couldn't read her face.
Karissa, after a minutes worth of thought, asked...