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Carrie thinks her relationship with Big has evolved enough to the place where she can leave stuff at his place. She purposely leaves a few items on his bathroom, only to be surprised by Big the next morning with a bag with all her items in it. Carrie is confused and tries to discuss it with him, but realizes she doesn't have to leave her marks on his place to know they're in a relationship. Meanwhile, Miranda feels her biological clock ticking when her gynecologist tells her one of her ovaries has stopped production. She starts taking hormones and going out on dates with guys she'd never go – like her co-worker with the hair plugs – but a discussion about freezing eggs leads her to realize she's only 33 and still has one ovary working. Samantha has the chance of getting back to the one guy who broke her heart, but can't resist the temptation of jumping to bed with him. Her vengeance plan goes down the drain when he dumps her and she realizes she hasn't evolved past having feelings quite yet. And Charlotte finds a piece of the male evolution of her own: a man who could be either a gay straight or a straight gay. The difference? The gay straight is nothing but the product of overexposure to the high life in Manhattan, but is still straight. Confused, she decides to go forward with the guy, but realizes her male side isn't as evolved as Stephan's female side. Add a recap »