Revealing mistake: When Miranda comes home from work and takes off her black jacket, her black dress underneath is tight. You can tell how pregnant Cynthia Nixon is when she lies on the bed with Steve. (00:08:05)
Character mistake: When Carrie is describing the younger guy she is dating, she claims he is the creator of an Internet magazine 'that she still wasn't able to find on her computer'; meaning she had searched the Internet for it. But as we learn later in the series, right before she gets back together with Aidan for the second time; she doesn't have the Internet on her computer until then. The girls talk her into getting it, in order to email Aidan. So there was no way she could have searched for the other guy's Internet magazine on her computer, as it was an older Mac laptop and not likely to have search engines without Internet access. She was only using the hard drive at that time.
Answer: A popular brand of sexual lubricant. See http://www.k-y.com/index.jsp.
J I Cohen