Her marriage is not unhappy and she still feels loved, but she and her husband have not had sex in years, leaving her to satisfy herself alone. Then handsome older pilot Oda invites her to dinner. She expects nothing more, but he secretly gives her an aphrodisiac and forces her sex drive into overdrive, leading to her first affair. Sex with the veteran pilot feels so good that she begins allowing him to creampie her, taking advantage of his having the same blood type as her husband even during her fertile window. Now she wants him again—and next time, she plans to invite him herself.