This slave has already had multiple needles inserted through his nipples by Fetish Liza and Miss Miranda as he is to watch a series of rubber bondage films on the medical room video screen. But now it`s time to start work with more needle insertions running the length of his tied-up shaft. It`s all in the name of science as the Mistresses need to find out if this cock can still cum after hours of . With one woman squeezing his balls and the other wanking his cock, the experiment soon proves a spurting success for all concerned.