Jun and I have known each other since childhood. From my first girlfriend to working at the same company and eventually marrying other people, she has spent ten years whispering filthy temptations whenever my girlfriend or wife might catch us. I know it is wrong, but her taunts—“Sex with her is boring anyway, right?” and “You’re really using a condom? Lame.”—leave me rock hard. This is our decade-long secret affair of bare sex and creampies.