The Insider.com

The highly anticipated Butter smooch scene between Olivia Wilde and Ashley Greene has finally hit the web [watch it here!], and it got us thinking: What are the best girl-on-girl movie moments?!

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No doubt Wilde and Greene gain honorable mention for their intimate scene, but in addition, here's TheInsider.com team's list of the Top 5 Girl Kisses:

1. Rashida Jones and Zooey Deschanel: My Idiot Brother - They're among the hottest brunettes on TV and in this big-screen comedy, we saw the New Girl and Parks and Recreation star lock lips! "I was like, 'Oh, my God, girls are so pretty and soft. No stubble burn! What am I doing with guys?" Jones told The Advocate of her sexy smooch. Click HERE for the kiss.

2. Natalie Portman and Mila Kunis: Black Swan- It's safe to say that this sex scene made the thriller, and certainly helped Portman earn her Oscar. Kunis said of the scene, "They’re never comfortable, same-sex, opposite-sex, it’s never comfortable." Check out the sexy trailer.

3. Selma Blair and Sarah Michelle Gellar: Cruel Intentions- This kiss was award winning! The girls won for "Best Kiss" at the 2000 MTV Movie Awards. Gellar accepted the honor, saying, "My mother is going to be so proud right now."

4. Denise Richards and Neve Campbell: Wild Things- The sexually-charged 1998 movie became famous for the pool scene when Richards and Campbell seduced Matt Dillon, and in doing so, shared a wet kiss. See the film's trailer HERE.

5. Jennifer Westfeldt and Heather Juergensen: Kissing Jessica Stein- Before she was on Jon Hamm's arm and walking red carpets everywhere, Westfeldt was writing and starring in this bi-curious flick that had her smooching the lovely Juergensen. See the fun flick here.

What's your favorite girl-on-girl movie moment? Angelina Jolie's Gia? Kate Winslet's Heavenly Creatures? Let us know, below.