Jennifer Lopez's boyfriend, Casper Smart, doubles as her nanny. Casper was seen arriving on the set of J-Lo's "Shades of Blue" TV series with J-Lo's 7-year-old twins Emme Maribel Muniz and Maximilian David Muniz on Wednesday. Casper came bearing gifts for J-Lo's cousin-slash-personal assistant Tiana Rios, who celebrated her birthday on the set. J-Lo sang happy birthday to her prima before Casper and the kids arrived on the set in Queens, NY.
Photos: Jose Perez / Splash News