Gems who are close to Steven Universe are viewed as mother  figures to him. So far his moms are Fun Mom (or Cool Mom or Croc Mom or phat mom), Bird Mom and Angry Mom and Cyclops Mom who fuse to become Square Mom. If Centipeedle and the Homeworld Gems join the Crystal Gems then Steven will have Chaaaaaps Mom, Moist MomDorito Mom/Smol Mom  and Cheeto Mom.