"What did you do to me?!?" roared Mike.
"I'm so sorry dad,I'll fix it right away,"replied Jeff who was flustered and turned on by the sight of his doll-sized, naked father.
When Jeff went back to the controls, however, he suddenly had inspiration for a different transformation for his father. Under the "sexuality preference" section, he unchecked 'straight' and filled out the description box instead, imputing the text, "Attracted to his son Jeff's penis."
Clicking confirm, Jeff stood up and took off his clothes.
"What are you doing Jeff, you said you'd change me back!" scolded Mike, when suddenly he was entranced by the sight of his son's 3 inch flaccid penis. Jeff had sat on the floor, giving his father an inviting gesture, with his legs apart, he pointed at his dick.
Mike didn't fully understand why, but in that moment he couldn't possibly be attracted to anything else, so he gave into temptation and walked over to Jeffs penis and hugged it with his hairy arms and chest, licking it head with passion.
Jeff moaned and his dick grew a few inches. After a fully indulging in this bizarre oral sex, and much to Jeff's surprise, Mike bent down in front of his son and begged him to rub the head of his dick against his ass while he got off.
"Fuck yeah!" said Jeff, eager to cum all over his dad's little ass. His dick clearly could not penetrate Mike, but it was extremely pleasurable to rub it all over his ass, and soon, the father and son climaxed together, covering Mike's ass with cum.