Teacupping

You fill an insulated mug or thermos with hot beverage like tea or coffee. You then insert the vessel into you partners rectum. Once inserted, they get on all fours with their head lowered to keep the fluid in the container. Once positioned, you place your mouth on the thermos/cup and get them to slowly raise themselves up by their front hands while the drink pours into your mouth. Teacupping.

Jane Doe was apprehensive about Teacupping, But John doe loved his hot beverage and anal play.