Can a mom be a woman / lover?

The woman I want to marry had a daughter when she was 40. I started dating her when her daughter was 10. ( I am a 57 y.o. 2x divorced man with a 36 Y.O. daughter) She has done a wonderful job in raising her. The daughter is #1 in her class and as teenagers go, she is pretty respectful. Anyway, my question is this. I think my fiance has forgotten how to be my lover. I think she has forgotten how to be a woman.... she has even told me how she only knows how to be a mom....I understood when we first started dating that she was a mom and the two of them are a package. I'm ok with that as I have come to love her daughter as my own :). How can I get her to start to think like a woman, to treat me like her lover? I love her, yet I have needs that I want only want to share with her. How can I get her to be this sexy, beautiful woman that I know she is....I miss the intamacy :( Help!

You should literally tell her how beautiful and sexy she is all the time. Make her feel like she's a young woman again. Imagine you are just meeting her for the first time. Fall in love with her again. Win her over again. Make her yours. You got this.