Another trip down the memory lane. A 70's classic The Ballad of Cable Hogue, a 1970 western directed by Sam Peckinpah and starring
Stella Stevens, Jason Robards and David Warner.
Stella plays a prostitute in the movie, and during one scene, when we see her taking a bath, we briefly get to see her breasts and buns.
For a much better shot of Stella topless you should also check out her movie
Slaughter. And if you're interested in other nude scenes from that time period then you should check out Mr. Skin. It will keep you occupied for ever.