It is very clear from his many accomplished drawings that Bodo Klös is particularly fond of generous female buttocks, a subject he has returned to many times. He often incorporates several sketch versions of the same model, and sometimes a matching text, to produce detailed and fascinating collages.
The drawings here include Ulli als Katz (Ulli as a Cat), Michelangelo Angel, and Selbst mit Hase (Myself with a Hare); you can work out which they are.