I feel like Strahd would show off vampiric strength by being able to rip through all the layers of Yari's outfit.
Though I suspect Yari would prefer a vampiress to do the ripping.
Nuuh that thing's expensive!
Yari is pretty innocent.. which in my case means open to being.. guided towards whatever. Someone evil like Strahd doing the ripping might turn her off of men, but if she's offered to redeem man, woman, beast or slime, she'll be more easily.. guided. By default she leans slightly towards the straight, because thats how things are supposed to.. consequentially she'd be more emberassed and unbalanced by females or exspecially futa advances on her.
That said, considering Ludmilla as a benchmark for these things trying to save and restore (Rather than save and enjoy in Rovana's case) a poor vampiress is quite tempting, even if there's a risk of becoming her personal pussy-slave or whatevers.
The one thing I see hard to change is her alignment.. I'm trying to have her about as good as Strahd is evil, obviously far less accomplished, but with the potential there, at least. *nodnod* Then again, innocent.