Liebesvögel (1979)

Young sexually inexperienced man goes to visit his friend and ends up having sex with his girl. This awakens his libido and he ends up bedding nearly every woman he meets, and although these are all mostly one night stands, he always tries to be somewhat gentlemanly about it by leaving them red roses. Due to his frequent visits to the local flower shop, the florist girl, who works there, becomes more than curious about him.