if a husband asks his wife for anal sex--she might ask him if he would prefer a carrot or a cucumber.
Something like this actually happened. Back when I was still in, a "sister" in the congregation was an R.N. at the local hospital. Without divulging any personal details like names she told of an emergency situation on one of her late night shifts. A man (non JW) had pressured his wife (also non JW) to fulfill his fantasy of anal sex. She agreed on the condition he FIRST satisfy one of her fantasies. It was to tie him up to the bed frame and use a sex toy on him. He agreed. She tied him up, went and got her hair curling iron, stuck it up his butt, turned it on, then left for the night. Screams summoned a neighbor who called an ambulance.