I think he was a wizard, so couldn't have sex without destroying his powers.
Instead he just sat aound polishing the knob on the top of his staff, to keep his hand in, so to speak.
Probably didn't help matters that as a young lad he learned the hard way why you can't bugger the hedgehog.
Whoa. You have a real knack with visuals!
All the wizards I know said...never mind.