Two girls trapped in a locker in such a way that they wind up grinding against each other's legs to much embarrassed consternation.

I coulda sworn it was Chika and Riko, but I'm not seeing it.

Hell, might even be something besides LLS, but my brain is telling me that it's LLS.

This one?, it's You though.
Also, there's a thread for this.

This one?, it's You though.

Dat's der munkey. Thanks.

Also, there's a thread for this.

Yep. Right at the top of the forum.