Fat Cowboy, a Skinny Cowboy, and a Prostitute [closed]

It was around 1995 that I watched this cowboy movie. It think it was not very popular and not a high grade movie. I just want to watch it again because that was the first cowboy movie that I watched. I was about 10 years only and I didn't understand English.

The story goes like this:- Two cowboys, one thin and one fat were riding on their horses. The thin one was the main hero, who was intelligent but the fat one was clumsy and always ran after women. The thin one always plays some small music instrument on his mouth, it could be a Jew's harp, I don't remember clearly. The fat one saw a beautiful prostitute bathing naked in a forest and fell in love with her. He went to the brothel, saw her coming down with a customer, paid the price to the pimp and made love with her. There was a mole on her buttock. There was a gang who disturbed people and they had a camp where they kept all their guns and explosives. They purchased a new machine gun and were celebrating it. The boss of that gang kidnapped that beautiful prostitute. After quarreling much, the two cowboys decided to rescue her. The fighting scenes were good and funny. The prostitute was rescued and the hero destroyed the camp with a dynamite. The fat guy and the prostitute were together happily. The last scene I remember was where the hero secretly threw the coffee prepared by the fat guy and his girlfriend(the prostitute) because it didn't taste good.