Jaycee Dugard Griffin is Peter's cousin in a cutaway gag in the uncensored version of "The Blind Side", in an allusion to the kidnapping of Jaycee Lee Dugard.
When Lois tells Peter that he can't stay in their bedroom, Peter points out that a lot of people stay in weird places, like his cousin: Jaycee Dugard Griffin. As she sits captive with an infant being kept in a cage, she tells her "grandpa-daddy-husband" that her belly hurts again.