Sleeping Like Spoons

I am divorced i have been living on my own for a year to say the least i am sex starved, recently my daughter moved back in after a broken relationship with another woman, after about a week she use to get in bed with me in the early morning i assumed she wanted company, i awoke one morning and she was cuddled up to me, my bare bottom was in her lap i could feel her naked body against me she had her arm around my waist me breasts were resting on her hand, i admit it did feel good i was enjoying our nakedness contact, i was not sure if she was awake, i awoke later lay on my back with her leg across my body her vagina was against my leg,
i was reacting in a sexual way even more so when she felt my breast and played with my nipple,
she was muttering her x partners name in her sleep, i didn't stop her, one mornings she put her hand between my legs i open wide while she fingered me, i felt guilty for enjoying it, I don't know if i should make her aware of what has happened, and my enjoyment of it, the only previous lesbian experience, was at college i got drunk with a friend and we snogged until she
groped me and i backed off. What to do ?