Another slap hit his face ( this time the opposite cheek to avoid bruising ) and he let out a choked sob . " I said do n't fucking talk to me like that . " Riku growled threateningly , shoving his fingers in and out of him faster . He took care in not hitting his prostate because he knew deep down Yura was enjoying every fucking minute of it .

Question: Where are the fingers sliding in and out of ?
Answer: A man 's buttNone of the above choices .a woman 's vaginaa man 's mouth