No pun intended - the movie is quite explicit too ... in case that is important to you for whatever reason. I guess it could have worked without all the explicit shots, all the nudity and all the penetrating. Especially because most of it, is not even meant to be arousing ... often times more like a comedy relief.
But if you can dig it, then the movie has an interesting story. The drama is high, the relationship feels "normal" (as in having issues .. to put it mildly) ... if you are adult enough and not too sensible and can handle the way it is depicted ... there is a lot to discover ... bad choice of words? Or just another pun? You decide.
Nowadays movies with images of genitals are not that shocking for most viewers, but there is still a taboo around them ... so it is all in the eye of the beholder ... and their mind of course ...
