My mother-in-law, Aya, is staying with us for a while to support my wife, who is nearing the end of her pregnancy. Thanks to her, my wife's frustrations are gradually being alleviated, but I've been ordered not to masturbate, and Aya's voluptuous body and the sex appeal she unconsciously exudes are pushing me to my limits... Aya notices this, so when I tell her what's happened, I can't hold back and show her my rock-hard crotch. Aya then kindly accepts me, saying, "If you want to do it with your hands..."