this is the first puzzle after the savegame. the game starts earlier were some of the mechanics are explainedOK, so there's a mechanic that they don't spell out first. Bring the right egg to a statue, and they grow a tentacle dick.
First Puzzle: Get the red egg and bring it to the statue in the room with the enema pillory. Then you can suck the piss out of the statue and spit it into the bucket by the elevator.