[Shiina Koharu's Lesbian Debut] Koharu is surprised to hear that her childhood friend Jun has a new boyfriend, but wishes him happiness. One day, Jun begs her to let him practice with her because he has never done anything sexual with another woman. Koharu is weak to pressure, and agrees to practice cunnilingus with Jun, saying, "On top of my clothes..." However, Jun's cunnilingus becomes more and more extreme, and the moment he licks her pussy, Koharu's body trembles with shock...! Cunnilingus special. Intense oral lesbian sex that explodes with the love that has been building up.