Thank you for the reply. Now that you told me more information, I think you should involve CPS. She a little old to be tickled anyway IMO. If she was crying, then I agree this is a red flag. I think you or a professional needs to gently talk more about this with your daughter.
In the meantime, teach her how to be bold is asserting herself and make sure she knows she can call 911 or you when she's there. I hope everything turns out to be okay for you and your daughter. Abusers look for compliance and people who find it hard to speak out - they don't want to draw attention to themselves so teach her how to be bold and noisy. You can also tell CPS that your daughter doesn't want to go there.