Jeff decided to grow his dad even more.
Suddenly Jack start expanding more and more, this time feeling and enjoying the growth. He started moaning loudly as his clothes didn't survive this time. A "RIIP" noise filled the air as they got destroyed and the giant beast showed all his growing masculinity and power in all its magnificence. As Jack's hulking frame reached 10 ft in height, the tiny chair collapsed under his immense weight, destroyed by his giant hard butt. Jack was in ecstasy as he grew and grew more, with a hand stroking his giant cock and the other hand roaming all over his growing and hairy muscles, pinching his hard nipples, and occasionally flexing his giant size bicep and licking it lustfully. His masculinity features became more and more exaggerated as the giant had to lay down to avoid to touch the ceiling with his head, crushing the table under his immense muscle back and causing the wall of the room to tremble.
Jack nearly filled all the space in the room as his growth seems to stop. Still touching his enormous muscles, he turns his head toward Dave, with a sexy manly grin.
"How can we have fun now?"