Entertainment Tonight ET Online ETOnline.com

Although Kristen Stewart is no stranger to showing some onscreen affection to her Twilight Saga co-star Robert Pattinson, she admits that this time around, tackling the steamy smooches (and more) as a vampire had her feeling a bit uncertain about her prowess.

Related: Check Out Today's Twilight Tip of the Day

"I feel like every single scene in this movie culminates with some kiss of some kind," said Kristen, who goes on to admit to a bout of trepidation about approaching the love scenes as a newly-minted member of the undead.

"You're supposed to have this mind-blowing, inhuman experience," she muses. "How do you do that?"

Video: RPatz on Bella's 'Powerful' Transformation

Well, it seems all that worry paid off. Kristen and Rob's romantic exchanges appear steamier than ever in Breaking Dawn: Part 2, out November 16.

Watch the video for more!