Some things need to go slow ... if and/or when she does open to the idea, you want her to enjoy it! You don't want her to feel bitter & resentful for doing something she didn't/doens't feel comfortable doing
I was molested as a small child & masturbation is EXTREMELY difficult for me -- even more difficult is explaining why
Only because my BF is so gentle, so patient, so understanding am I finally beginning to want to try it & yet I still end up dissociating (leaving my body) ... my reflexive response to the trauma
& this is when I'm alone -- I am no where near trying to masturbate in front of him!
But this doesn't mean I don't hope to -- I do want to ... however, that desire gets squashed under any pressure from him to do so