The problem I have with Courtney not wearing her bikini under the beads was the fact that she felt the need to call so much attention to the fact that she wasn't wearing anything under them. She shook and shimmied and constantly mentioned it. I'm sure if she had acted normally, the black bar wouldn't have been needed. But no...she had to make sure everyone and their children knew she chose to forego undergarments. Yuck.
And Ben's reaction is mostly typical, but dude...you are on national tv with your mother watching. Show a little class for her sake.