I used to fuck Janet (RIP) like that. She would intentionally say the wrong things so I'd discipline her more. I slapped her, pulled her hair and sometimes, I'd quickly withdraw from her and run my middle finger directly into her asshole. Dry and sudden. I would hold my finger up in her asshole and tell het she was a cunt then I'd make her repeat it. I'd pull my finger halfway out and hold it there- she be quivering and wanting it back in her deep but I'd hold it there until I told her to "back onto it" and she would. god, what a fun sex partner she was.