I'll just say trust me on that one, the most important thing to me is to keep Mary's behavior and progress relatively consistent.
Based on her dialogue during the cunnilingus scene, Mary seems to be close to giving in to sex with Kendo, will that be in the next update, it could be during a replayable cunnilingus scene as an option if his MP is high enough, it would work perfectly there, as they're already talking about it, or maybe some naked grinding on his penis, or rubbing his tip against her pussy, with the option to have sex if he has enough MP somewhere else. I'd also love more options in Mary's room soon, like licking her, boobjob, thighjob (clothed and nude, the latter requiring more MP), etc.
Also, you should make the new scenes replayable, with altered dialogue, like the previous version's scenes.