Sydney Sweeney is spelling it out. The actress, 29, wore her “SB” initial necklace in new lingerie photos posted by her brand, Syrn, on Wednesday. The dainty monogram is thought to be a tribute to boyfriend Scooter Braun. The images promote Syrn’s “Send Nudes” collection, which the label calls “a cheeky and playful take on the classic nude color palette.” The collection includes 18 pieces, including four new silhouettes, in four skin-toned shades. Sweeney models the Forever Yours demi bra ($64), giving the lens a smoldering gaze in one shot and posing on a bed for her laptop’s Photo Booth app in another. She also snaps a mirror selfie with…









