Natalie Portman isn’t the only Hollywood actress with a post-holiday diamond: Reese Witherspoon and agent Jim Toth are engaged, her rep told Us Weekly. The Legally Blonde actress began dating Toth in January, shortly after splitting with Jake Gyllenhaal. Toth is an agent with L.A.’s Creative Arts Agency, where Witherspoon is a client, but he does not represent her. “They are extremely happy,” Witherspoon’s representative said. Witherspoon has two children, Ava, 11, and Deacon, 7, with former husband Ryan Phillippe.