乳部

乳 = 乚 + 孚 : Rachel Rhinoceros (ru) wants to have a very special wedding ring (孚): a breast milk (乳) ring. She already stored a lot of her milk (乳) in the space station (Ø3) and started to shovel (乚) it into the hollow pearl of her ring .

部 = 咅 + 阝 : Bruno Bear (bu) has been harassed by the Imperator (阝) in the space station's bathroom (Ø4), so Bruno sets up a trap. He creates two fake boobs (乳部) out of poo-poo (咅) and as the Imperator grabs his boobs, the Imperator realizes his mistake and exclaims "bah!" (部).