"It's okay if it's only for 3 seconds, it doesn't count as cheating, right?" My jealous tsundere childhood friend, Mia, suddenly came at me with a strange rule after I got a girlfriend! "You're still a virgin, aren't you? You should practice kissing and sex so your girlfriend won't be sad!" I was forced to have daily 3-second quickies with Mia, who claims to be experienced, and they kept escalating beyond just harmless practice! At first, I really thought it was just practice, but our chemistry was better than I expected... While desperately telling myself that "as long as I follow the rules, it's not cheating," I found myself craving Mia's 3-second sex... We kept reaching climaxes while counting, our bodies pressed together intimately. ___ Wait, 3 seconds really feels that long?!