A method and liquid-filled apparatus for male masturbation is disclosed. The method and apparatus incorporates an inner sheath (10) made from a pliable waterproof material that, when assembled within an outer containment vessel (12) by the application of a container sealing cap (14), forms a sealed chamber...http://www.google.com/patents/US20060264856?utm_source=gb-gplus-sharePatent US20060264856 - Method and liquid-filled apparatus for male masturbation
