Whose Fringe Bits are they?

The clue is in the title, and the student show in question at the Edinburgh Fringe is The Oxford Revue: With Bits.

The bits belong to Will Truefitt, who appeared full-frontal yesterday. “I did the first two performances in my pants,” he tells me. “But the father of a fellow cast member said the only way the sketch would work was if I did it naked. It was two seconds before my cue that I made a decision. Off came my pants, and on I went.”