My boyfriend Yuji is a shameless flirt who keeps cheating, but I always forgive him because I love him. When I threaten to sleep with another man so he'll understand how it feels, he loves the idea and immediately invites a professional wife-stealer over. Forced to start in front of a grinning Yuji, I refuse to kiss the older stranger but can't stop moaning once he pounds me. By the time he finishes in the condom, I'm lost in pleasure. Yuji apologizes and wants to stop, but it's too late—I've awakened to a thrill I never knew before.