I've always wanted to write something erotic, but still retaining some semblance of tastefulness. It has to be something that you can relate to, which doesn't require you to suspend disbelief toomuch (but you could argue that K-ON! is one huge, shark-jumping exercise), something which might plausibly happen were you actually living in the K-ON!iverse.
So you have Yui playing the brown note, and soiling her underwear. And going commando. And schoolgirls all going mad over her because of it.
Credit must go to Coalguys for subbing each episode as it comes, and for their translation of the theme song Utauyo! MIRACLE, which I have changed just a little bit for effect. Without their help, the magic of K-ON! would remain just a mystery.
May we see more of Yui-chan and the others in future (come on, Kakifly-sensei, don't let this end yet).
And thank you for reading this! Minna daisuki!