Justin Timberlake may have brought “SexyBack” on MTV’s Video Music Awards Sunday night, but it was Miley Cyrus who turned things embarrassingly raunchy. Crotch grabbing? Check. Stripping and gyrations worthy of a strip club? Done. Prancing around in flesh-toned latex bra and panties? No prob. Grabbing and sticking her face in a dancer’s rear end? You better believe it. Excessive tongue? As if you had to ask. And that was just during the first part of her performance, when she pranced about with dancers dressed as giant teddy bears for “We Can’t Stop.” Things got even dirtier when Robin Thicke joined her on stage to perform his massive summer hit, “Blurred Lines.” That’s when Ms. Cyrus If You’re Nasty decided to twerk her behind right up against the singer’s crotch, and also ran her giant foam finger down the front of his pants. His wife, Paula Patton, must’ve been so pleased. During her risque act, MTV’s cameras panned the audience, and some of the reactions were priceless. Will Smith and family had some of the best. The “Men in Black” star looked disgusted, while 12-year-old daughter Willow’s jaw dropped in shock, and 15-year-old son Jaden looked as if he might be on the verge of tears.