The blonde actress, who locks lips with the stunning brunette in new movie 'Jennifer's Body', couldn't get to grips with being so close to a woman.She told Britain's InStyle magazine: "It was my first time doing a real kissing scene with a woman. It is just weird. It is a woman. With a woman's smell - soft and floral-y - and maybe the pheromones are different. Something about it felt uncomfortable for me."
This isn't the first time Amanda - who is dating her 'Mamma Mia!' co-star Dominic Cooper - has had to canoodle with a Hollywood actress.
The 23-year-old star says the steamy embrace she shares with Julianne Moore's character in forthcoming film 'Chloe' stretched her acting abilities.
She explained: "I also have a love scene with Julianne Moore in 'Chloe'. When you are done with the scene, you just think, 'Oh God, I can do anything. I have just had sex with a woman!' "
