Can someone find this story for me?

[That]

I remember, but cannot seem to find a mervelous(at least for me) story about an anime tickling tournament, it featured, among other, a Tifa vs Aeris match where Tifa ended up tying Aeris's arms to the wall of a cage and tickling her, and i quote ''creamy soles'' or so i rememeber, can anyone please find it for me?

 

[SF85]

I think I might know this one... What sort of form is it in? Script?