Exactly what it says in the thread title. Worth noting if they actually talk about it, get audibly embarrassed, or just avoid saying anything about it.

One example that comes to mind is Embeth Davidtz and Amy Adams' DVD commentary on Junebug. During Davidtz's nude scene they giggle and make "oh my!" type comments. And, although it's not a nude scene, during Adams' masturbation scene she gets embarrassed and starts saying she can't watch.

Anyone remember any other examples? I know there's a lot more than just that.

Robin Tunney whips off her top briefly in the movie Cherish. You don't see much, but it prompts this anecdote from her on the commentary track: "I went to go see the movie in New York and my cousin was there. He was praying that I was not gonna turn around and show my tits. During this scene, he was sitting next to me and I could feel the pressure. He was like, don't turn around, Robin, don't turn around."

The commentary on Starship Troopers has Casper Van Diem and Dina Meyer, both talking about the shower scene, and both complementing eachothers bodies.

One of my favories, Milla Jovovich on the commentary for Resident Evil points out her own pussy shot to viewers (as a public service no doubt). She says something like "here comes my beaver shot" just as the scene (and her hospital gown) unfolds.

Barbara Crampton on Re-Animators commentary. When Barb is naked on the table, she says "This is my mothers favorite part of the movie". Theres silence, then the guys are talking about the lights in the scene and Barb says "The lights? Look at those breasts!"

Along with Evil Dead2, one of the best commentaries ever made. VERY funny and well worth listening to.