And it did not look pleasant. Jennifer went on Letterman a couple nights back to talk up her new movie, The Back-Up Plan, and while she was there they also discussed her latest scent, Blue Glow. Jennifer, who's on her umpteenth fragrance right now, did a really good job of explaining what a flanker is. Then, in a moment of what was surely madness, Dave decided he would taste the stuff, and Jennifer just kind of shrugged and joined in. Big mistake. The results are just so hilarious: