Why do I suspect that Akio values Annabelle in the sense of 'ten, maybe twelve years from now, I can sexually confuse her and use her as the Rose Bride'?

The way he did his sister. The way he did his own daughter.

But maybe he has something more original in mind.

(And of course, with all Akio's talk to Corwin of how Annabelle was Anthy's tool to keep Corwin and Utena under her thumb, how does he use her? Projecting much?)