IOWA (2005)

There are about 5 scenes where the blond girl, who turns out to be pregnant, shows full frontal nudity. The girl with the short black hair in several scenes displays full frontal nudity as well. A pregnant woman is seen completely nude, showing full frontal nudity and her buttocks.

There is a lot of pot smoking in this movie. The movie is also based around a meth lab, so clearly there is a lot of talk and scenes involving Meth.