MIDV-787: As Soon as I Got a Girlfriend, Insertion Was Allowed for Only 3 Seconds! Short-Time Sex with My Jealous Childhood Friend Was Such a Perfect Match She Made Me Cum Over and Over… 七沢みあ

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"If it's only 3 seconds, it doesn't count as cheating!" The moment I got a girlfriend, my tsundere childhood friend Mia got jealous and suddenly confronted me with a strange rule! "You're a virgin, right? If you don't practice kissing or sex, wouldn't that be unfair to your girlfriend!?" Claiming to be experienced, Mia made me go along every day, and the short 3-second sex that wasn't supposed to be cheating kept escalating! At first it was really meant as practice, but our compatibility was far better than I expected... "If we follow the rule it won't be cheating" — desperately repeating that to myself, I found myself wanting the 3 seconds, wanting sex with Mia! Counting through it, we reached climax again and again, entwining our bodies intimately while flirting. Even so — were 3 seconds always this long!?