damn, kim possible won? nothing against kim possible, loved the show and girls, but i still think ben 10 would be the better game, more sci-fi which allows for whacky story like FET, more girls, and potential for weird sex.
Of course I'm definitely biased, since Ben 10 and Avatar were my top 3 favorite childhood shows (Ninjago is the last, sadly I don't think that would work as a porn game, tho the quirkiness, elemental and plot definitely MITY's style, not to mention the snake girls lol)
and if they did go Ben 10 im pretty sure they'd include alien form sex for people that are into bestiality, like they did with FET, would just be optional, but I agree they should keep the multiverse thing, allows for literally all these other IPs to be part of the game if they wanted to