"I'll Keep It To An Hour..." A Weekly Secret Karaoke Rendezvous As A Substitute For A Love Hotel. A "predatory Mom" Summons Her Son's Younger Homeroom Teacher—not To Sing, But To Satisfy Her Sexual Desires. As She Straddles Him In The Cowgirl Position And Thrusts Up, Her Lewd, Lustful Juices Foam White. Aozora Hikari