Justin & Jessica's Double Date with Timberlake's Parents

10/20/2011 8:15 AM PDT

Not only is it back on, but it must be getting serious again because Justin Timberlake had dinner at Angelini Osteria in L.A. last night with Jessica Biel ... and his parents.

Despite breaking up earlier this year, JT & Jess' relationship is so hot that parental guidance is suggested.