• Book Name: BOKURA NO SAIDAI KOUYAKUSU Manga
• Alternative(s): 僕らの最大公約数; Greatest common Divisor
• Genre(s): Romance School Life Yaoi
• Author(s): Kashima Chiaki
• Year 2015
• Status: Completed Download Manga
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Summary: Tacchan is my smart, athletic and cool lover. Yesterday, we had dinner together, bathed together and had vigorous sex at his house… but I couldn't hold back, and after three rounds, he got super mad at me and said, "At this rate, I'll be a virgin forever!!! Stop complaining and let me shove it in you after one round!" That's asking for the impossible~ I'm not satisfied until I've done it about three times!