Plus One Is The Loneliest Number

S5 E5: It's the launch party for Carrie's book and the girls are preparing by trying to snare a partner to take along. Charlotte's designs on the highly-eligible Justin Anderson III come to nothing after they are interrupted mid-flow, and Samantha's splurge on a pre-party chemical peel leave her unattractively tomato red. Meanwhile, Miranda hooks up with her pre-baby lover Walker, but neglects to tell him she is now a mum.