BEIJING, June 8(Xinhuanet) -- Are there any rules called "beauty attracts beauty?" After splitting with her husband, Academy-winner Sandra Bullock appeared at the ceremony of MTV Movie Awards on June 7 and kissed the blonde stunner Scarlett Johansson.

However, this was not the first time that audience witnessed the girl-to-girl kiss: Madonna and Britney Spears did so in 2003, which caused a sensation at that time!

Following are some impressive girl-to-girl kisses between celebrities:

1. Sandra Bullock and Scarlett Johansson

Spot: 2010 MTV Movie Awards

Sandra Bullock kisses Scarlett Johansson at the ceremony of 2010 MTV Movie Awards