Those who say rom-coms warp our idea of reality, obviously haven’t heard how Mila Kunis and Ashton Kutcher first. I thoroughly enjoyed No Strings Attached , the new romantic comedy in which Natalie Portman and Ashton Kutcher attempt to be "sex friends" in lieu of having a real relationship. I know this puts me in the minority among critics. Slate. No Strings Attached! Ashton Kutcher reveals his initial 'purely sexual'…