UNIVERSAL CITY, California — The leading couple from "Rock of Ages," Julianne Hough and Diego Boneta, were joined by Malin Akerman and director Adam Shankman for the final installment of MTV's Sneak Peek Week on Friday, just two days before the 2012 MTV Movie Awards on Sunday.

The "Rock of Ages" cast sat down at 5 Towers on Universal CityWalk, where they not only chatted about the splashy big-screen adaptation of the Broadway show, but also dropped an exclusive sneak peek from the highly anticipated June release, which also features MTV Movie Awards host Russell Brand, Alec Baldwin, Mary J. Blige, Catherine Zeta-Jones and more.

And while Hough and Boneta share a sweet, tender love story in the flick, Akerman's rock reporter and Tom Cruise's rock star Stacee Jaxx, well, their love affair is a bit more torrid.

"I think I'm the only person who can say that Tom Cruise has sang into my ass," she laughed, recalling a scene in which, while in her undies, Cruise actually sings with his face right up to her butt. Is that the Oscars calling?

"It's amazing! I'm very proud of it," she added. "I can't wait to tell my grandfather about it. It was an unbelievable experience. First of all, to be able to do a duet with Tom Cruise and then to undress him and pretend to make love to him on an air hockey table [while singing 'I Want to Know What Love Is']. It was one of the most unbelievable scenes of my life. It was so much fun."

While they do exchange kisses, they redefine the term "French kissing." "People keep saying, 'Oh, your kiss with Tom Cruise!' It was literally like two dogs licking each other," she said. "They call action, we go for it, and it is tongue all over."

So was it hot? Director Shankman explained: "It was so disgusting."

Head over to MovieAwards.MTV.com to vote for your favorite flicks now! The 21st annual MTV Movie Awards air live this Sunday, June 3, at 9 p.m. ET.