Ittoke!!

Makoto, a man of virtue with a strong sense of justice and camaraderie, works hard to make ends meet. However, he used to be a biker gang's top dog. While he was known as the strongest leader ever, he was also pure, and is still a virgin to this day... Makoto's memories of the day student council member Chigusa Tokuyama stole his first kiss back in high school are as vivid as ever. One day, he happens to run into Tokuyama, now a cop, who claims he can tell if someone is a virgin "just by looking." Tokuyama then pins him to the floor...! The innocent "Mako" is on the verge of panic!! Yet, his heart and body start to yearn for his high-school nemesis!!

(Source: Renta!)