looking at the code, there were three separate cumslut lvl 2 scenes, but due to coding issues two of them were unavailable. i've uploaded another hotfix that patches the other two back in (riding the arena guard + a racing chocobo servicing scene).
that being said, the max reachable levels of some of the skills are kinda haphazard. the plan was for ass & mouth to max out at 10 & the rest to max out at 5, but there's not enough content reachable in the game to actually do that yet.