If there was actual freaky imagination going on (this is big dick DBZ after all), Kana would be able to use her giant sperm as a way of attacking/infiltrating her enemies... Tete really has to change things up and start thinking outside the box. The most interesting thing about this whole "arc" is that Kana developed a crest. If you're gonna do big dick DBZ, go wild with the abilities instead of repetitive fights. There's constant cum swapping, why not have a character that uses sperm to attack the balls from inside? At 173 Kana's clearly got lively ones, have them do something... Have a character who switches things up and doesn't get huge, but maybe has super strong lust and can make the other futas cum on a whim with like mind powers or some shit. Get creative, something unique.