Abstract: A device for administering a liquid into the body of a person through a natural orifice, e.g., the anus or vagina, while the person is seated on a toilet. The device comprises a base unit, an extendable tube having a distal end, and a vessel containing the liquid for introduction into person. The base unit comprises a saddle arranged for disposition under the toilet seat and configured to be disposed between the buttocks of the person when he/she is seated the seat. A positionable guide tube extends through a portion of the saddle from an entrance point adjacent the front of the toilet to an opening located at a position adjacent the natural orifice, e.g., anus or vagina, when the person is seated. The extendable tube has a distal end portion arranged to be inserted by the person into the guide tube and through the opening, and the guide tube is arranged to be slid with respect to the saddle, so that the distal end portion of the extendable tube is directed upward and enters the natural orifice.