Ah, will you just look at those images up there? Go ahead, we'll wait.

To be honest, the hardest part of putting together this post was simply narrowing down our choices. The 'X-Men' franchise already featured a highly impressive list of Hollywood's hottest stars -- Halle Berry, Kelly Hu, Famke Janssen, Rebecca Romijn, Anna Paquin, Lynn Collins, to name a few -- and that was before 'X-Men: First Class' hit theaters today. Guess we can now add January Jones, Zoe Kravitz, Rose Byrne and Jennifer Lawrence to the Smokin' Hot Mutant Hall of Fame.

For our ongoing Summer's Sexiest Women series (see Natalie Portman, Penelope Cruz), we put together a gallery of some of our favorite lady mutants, plus videos of several of their sexiest scenes. (Rebecca Romijn in 'Femme Fatale' do anything for ya? Again, just look above for a reminder.)

Halle Berry (Storm) as Jinx in 'Die Another Day':

Famke Janssen (Jean Grey) as Xenia Onatopp in 'Goldeneye':

January Jones (Emma Frost) as Betty Draper in TV's 'Mad Men':

Rebecca Romijn (Mystique) as Laure in 'Femme Fatale':

Kelly Hu (Lady Deathstrike) as the Sorceress in 'The Scorpion King':

And don't forget to check out: The Hottest Hunks of 'X-Men,' featuring Hugh Jackman, Michael Fassbender and More!

Check Out Moviefone's Summer Movie Guides: