Goku was laying on his bed. He just spent the entire morning training and was very tired. Chi-Chi left with Bulma to go on a trip, so it was just him, Gohan, and Goten. He took off his clothes and threw them in a corner, reminding himself he needed to wash them later.
Suddenly, Gohan burst in the room. Goku went to pull the sheets over his naked body, but Gohan laughed, "Dad, come on, we're all guys here". Goku smiled and dropped the sheets.
"What do you want Gohan?" he asked.
"Come here and see", Gohan said, walkign back out to the kitchen. Goku, seeing no need to put his clothes back on, walked out to the kitchen. He saw a glowing rock on the kitchen table.
"I found it on my way home from school," Gohan explained, "I don't know what it's for though".
Goku picked up the rock and examined it.
"It doesn't look like anything's wrong with it," he said. Putting the rock down, he felt s sharp jolt of energy flow through him.
"Woah, I just felt something flow through me. Did that happen with you Gohan?"
"No," Gohan said, shaking his head.
Just then, Goten ran in the room.
"Oh, cool. Look at the rock," he said, but before he could touch it, Goku stopped him.
"Don't touch this rock Goten. I don't know what it does and I'd rather find out than you guys, in case it's dangerous".
Goten sighed and went out of the room. Goku went back to staring at the rock, but Gohan wasn't. He couldn't stop staring at his dad. He never knew how good of a body his dad had and, if it wouldn't be the weirdest thing on the planet, he would kiss him right now.
Goku then went back to his room and, in Gohans disapointment, put on a clean set of clothes.
That's when