Joan/Cherie Relationship?

I know it's probably been discussed to death, but I'm just wondering what some of you guys thought about the way the relationship was portrayed on film.
I haven't listened to the commentary yet so I don't know if Joan discusses anything in relation to certain scenes and clarifies or not. I know she is very private about her personal relationships so I'm gueesing not. It just seems to me like the film portrays not only a very close friendship between the two but alludes at something further as highlighted in quite a few scenes like; the kiss, the morning after, the intro to the corset in japan and then ending in relation to the song and look on Kristens face. What do you guys think, yay or nay to something more than friends or were they just messing around due to the era?

Avoid suspicion, manipulate your friends, and eliminate your enemies!