Kelly Taylor in the house! Beverly Hills, 90210 alum Jennie Garth stopped by Us Weekly's New York City offices on Thursday, Oct. 23, to promote her new show, The Jennie Garth Project — and to help recap the week's hottest stories, including Fifty Shades of Grey's surprisingly undersexed sex scenes. 

The movie's stars, Dakota Johnson and Jamie Dornan, were recently spotted back on set for reshoots, which sources say were necessitated by a distinct lack of chemistry between them. Producers thought the existing footage didn't feel "passionate," one insider reveals in the new issue of Us Weekly.

Another source adds, "Dakota isn't coming off sexy enough. [Anastasia Steele] needs to be naive, not a dishrag." 

A rep for Universal Pictures, meanwhile, denies that there's a chemistry problem. "No one should question the heat or intensity of our actors," the rep says.

Fifty Shades of Grey — based on E L James' wildly popular erotic novel of the same name — is due to hit theaters in February 2015, which gives the cast limited time to get things right. "They want to do sequels," a third insider tells Us, "so this has to be perfect." See photos from the reshoot.

For more of the week's hottest stories (and to see Jennie Garth's dishrag impression!), watch this week's Hot Stuff video, hosted by UsMagazine.com Deputy Editor Justin Ravitz and guest star Garth, whose new show airs Tuesdays at 9 p.m. ET on HGTV.

Other stories in the roundup: Bethenny Frankel explains her return to RHONY, Beyonce and Jay Z take Paris, and more!