Ruth Küllenberg inMoviesSort Popularity Votes Average Original Title Release Date The School Girls 5.3 average rating ★★★★★ Varsity Playthings 4.4 average rating ★★★★★ Campus Swingers 4.6 average rating ★★★★★ Sex Clinic '74 5.667 average rating ★★★★★ Schluss! Aus! Amen! 7 average rating ★★★★★ Regentropfen 0 average rating ★★★★★