I Wish It Were Dark

Two drunks sitting at the rural area bar, lamenting their lack of a sex life. One looks out the window, and across the road is a sheep stuck half way through a fence, with its butt facing the tavern. One drunk says "I sure wish that sheep were Marilyn Monroe." The other says, "I just wish it were dark."

Mutton Doc

Patient: Doctor, Doctor, I feel like a sheep. 
Doctor: That's baaad!

Cowboy Lovin

A group of cowboys were branding some cattle. While they were out the cook saw a sheep tied to a post. Thinking it was for that nights dinner, he cooked it. That night after dinner the cowboys were all sulking and ignoring the cook. The cook pulled a cowboy aside and asked, "Did I screw up the cooking..." "No", the cowboy replied, "You cooked up the screwing."