Lower leftmost image, center window there is a small "fwshh" and a bit of smoke coming from her, indicating that she accidentally opened the floodgates when she got startled.
Ah...
I forgot.Ooh!Lock the door, you idiot!!Yawn...
I wonder what tomorrow's breakfast's gonna be...?Oooohh!!Mmm...
Toilet, toilet...W-W-W-What is wrong with you?!Let's go, Rensouhou-chan......Right? Rensouhou-cha-Shimakaze