" …Okay. So remember how I found you and Trunks?" "Yes." 'Oh short answers, she's pissed.' "At the time you didn't know he was your son, but now of course...we do." "Yup." 'Oh crap.'
"I was just wondering, why exactly it was a bad thing? Besides breaking traditional rules I mean." "Okay geez, you're already getting into genetics this early huh?" Gohan earnestly nodded. Bulma sighed and began, "Basically everyone has DNA, building blocks of life blah blah blah. But people who are related share a lot of the same DNA code. When people make a child, that kid has new DNA. But if the couple making the baby are the same it can cause serious defects in the newborn."
"And seeing as how Trunks is my son he shared 50% of his DNA with me. If he gave me a child that baby would be beyond messed up, physically, mentally, you name it." " Ah, I see. So that's why its bad." "Bad? Gohan, incest-that's what its called by the by- is illegal pretty much everywhere. It corrupts genes and is super dangerous."
"Well okay, thanks Bulma, don't worry your secret is safe with me!" He tried to hide his disheartened demeanor. As they left the chamber he considered not even bothering to see the second person on his list. But that went out the window when that someone walked down the staircase to his right.
"Kakarot's whelp, what the hell are you doing here?"