According to our on-set insider, Kelly and Matthew are getting their Lily and Rufus on. "[They're] VERY close on set," our spy says. "They are giggling a lot and nudging each other." Scandalous!
Both stars are recently divorced. Kelly is single, but Matthew has been linked to Leyla Vassighy, a fashion maven who works for designer Brunello Cucinelli. Hmm... wonder what she'll have to say about all this!