On Saturday evening, our sources spied a woman resembling legendary supermodel and reality star Janice Dickinson at the Target in Somerville. Turned out, it was Janice. She was with her fiance, Rocky Gerner, and his family, and she was on the hunt for flannel shirts. “[I] just got back from Paris and I think this is more fun,” she said of her Target trip. Dickinson, a former “America’s Next Top Model” judge, explained that she’s been in town visiting Gerner’s daughter Becca. The couple, who spent part of their afternoon at Taza Chocolate’s Day of the Dead Party, walked the store with the whole family: Becca, Becca’s husband, Kevin Staszowski, and their baby, Abe. Gerner, who met Dickinson through her son, is a physician in Los Angeles. He said they will marry next year — and the occasion will be televised.