The Party at Kitty and Stud's

The Party at Kitty and Stud's  is a 1970 American softcore pornographic romance film directed, written and produced by Morton Lewis and starring Sylvester Stallone in his first starring and leading role. Stallone worked two days and was paid $200. Shortly after the 1976 release of Rocky, The Party at Kitty and Stud's was edited and re-released as Italian Stallion to capitalize on its now-famous star.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.