Ah, sadly it wasn't anything so amusing as that - back when they showed it as "Tenchi Universe", they drew a bikini on Ryoko during the bath-house episode.
For the record though, I would find the idea of watching Tenchi running around in short-shorts a bit off-putting too. A man should never wear those; it's like sandals with socks.
Unless of course, in a twist on the old Die Hard schtick, he lost his trousers at the start of an episode and was forced to battle demons in his skivvies. That would be hilarious.