I've found the scene with the other two girls in the Autumn scene (realizing that clickable stuff always highlights when you pass over it helped, plus the fact it was hinted at in the preview images for this page), but couldn't bring myself to dig enough to find this Eli MGTS scene. Couldn't find anything extra clickable in her scenes at least. If it's triggered by a different combination of events, I'm not digging for it on my own at this point.