According to police in the German state of Baden-Württemberg, the woman was accosted by the unknown man on the street over the weekend. She told police that he had engaged her in conversation as she sat outside her apartment. She left, but he waited for her outside and attacked her shortly thereafter.
Police said the man, approximately 30-years-old, tried to force the woman to perform oral sex on him, but she bit his penis and fled.
Investigators believe that the man was injured severely enough that needed to seek medical care, which could provide leads in the case.