I also like to have my lover hold my hair out of my face so that he can see what is happening, and I don't mind if he places his hands gently on my head. But if he tries to determine on his own how deep he's going to go down my throat by face fucking me, at the very least I will be ticked off and will stop and at the extreme will bite. Otherwise, where he wants to place his hands, whether on his body or mine, is fine with me.

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Communication is the key.