October 13, 1954 (age 66)
Monika Kaelin is a Swiss Penthouse model, singer, copywriter and actress. She was born on October 13, 1954 in Schwyz, Switzerland. She was chosen as Penthouse Pet of the Month in May 1980. Monika was 25 when she became a Penthouse Pet.
She is a former kindergarten teacher. Monika can speak five foreign languages. In 1979 she was crowned Miss Switzerland. Monika also known for her roles in the movies "S.A.S. a San Salvador" (1983), "Girls After Midnight" (1978) and "Plem, Plem - Die Schule brennt" (1983).