Brooke Shields has babies on the brain. Shields, who’s starring in the kid-friendly comedy “Furry Vengeance,” has been telling friends that she’d love another baby to join her family, which includes daughters Rowan and Grier with husband Chris Henchy but wondered if, at 44, she might be too old to get pregnant again. She recently was spotted fawning over an acquaintance’s toddler after a workout at Soul Cycle, cooing, “They’re so cute when they’re this size!” A rep for Shields had no comment.