Here's what I wrote:
The first time I ever saw a cock go up an asshole was when I was 10 years old. I had "borrowed" my uncle's copy of Night Shift Nurses. At one point, Siobhan Hunter (as a nun) is riding Peter North (a patient) in cowgirl, and over her shoulder, she notices that John Leslie (a doctor) is watching her. She looks surprised, but keeps riding. Then she looks back over her shoulder, and says "buttfuck me." Naturally, a DP ensues.

