Sarah Jessica Parker is a Twitter virgin. The “Sex and the City” star told a group of well-networked beauty bloggers that she’s never been on the site. At one point, she asked if Twitter “was a 24-hour thing” or “if at some point people tweeted that they were going to bed for the night.” Parker celebrated the launch of her new fragrance, SJP NYC, with the group at West Village eatery Sweetiepie, where Elle creative director Joe Zee led a discussion with her.