Boku no Kanojo ga Konna Kimo-o no Yome ni! ~Gomen ne, Watashi no Shikyuu wa Darling Sen'you ni Sarechatta♪~

Maya, childhood friend and student president, was dating Tomohiro, honor student. But due to prudish nature, they had not even had their first kiss.

Tomoaki, freaky otaku boy, fantasized about Maya's purity and was in jealous knots thinking about Tomohiro. And so he laid a trap to steal away her first kiss, and her virginity.

[From DLsite English]