Videl bit back a moan as her form distorted and stretched; she couldn't let them know she was enjoying this, couldn't let them know the kind of freak she was. Her stomach spilled out further and further beneath her, her arms being slowly forced to her sides by the foreign goo that flooded her body with every passing second. She hiccuped and a little bit of Buu's goo escaped, but infinitely more plowed into her from behind to make up for it.
"A distraction", she'd called herself. It was a noble effort that she mounted, or at least it would have been had she not been doing it for all the wrong reasons. Sure, allowing everyone to flee into the Time Chamber and buying precious time to prepare for Buu was an amazing feat for someone so comparatively weak to Buu, but she doubted they would find her actions noble if they knew that it was born purely out of arousal.
Years upon years of getting off to inflation porn, playing with herself to the visuals of bodies warped and distorted by air, or water, or even fat, always far larger than even the biggest or fattest human to ever exist, all culminating after she'd heard of what Buu had done to a random human down on the Earth.
Was it horribly selfish and irresponsible? Absolutely. But she'd take this embarrassing and twisted truth to her grave whenever that may come, and for now she would bask in the glory of not only being integral to the universe's survival, but also in getting to fulfill one of her deepest fantasies...