Depending on how close you want to get to the line, Vivid (aka Luscious) has to be up there, along with maybe I Like to Play Games.
The Lover, thats the other movie with the Color of Night girl, good call. With Jane March, I'm remembering now... (I want to look up her up for current day photos but man she's probably gonna disappoint... lol)
Henry and June about the hottest movie I've seen at an art cinema. Mullholland Falls, Naomi Watts nekkid with another beautiful women. Enough said..
No mention of Emanuelle? Also, Emanuelle in Space. I don't know how many there are, but they all star Krista Allen, they are horribly stupid, but Krista Allen is so hot and so naked.
I was going to list Henry & June too. That's probably tops for me. Also, Rambling Rose was a good one that hasn't been listed yet. Where the Truth Lies had an interesting sequence with Alice in Wonderland.