KAGH-078 - The kotatsu is a lawless zone! Caught my sister panty-peeping and couldn't resist sliding my fingers in 2

Peeking under the kotatsu, I struck gold—her panties were fully visible! I couldn't resist slipping my fingers in, and the heat of the kotatsu had her already dripping wet. With the scent of her arousal filling the cramped space, I didn't hold back. Mom's right there, but the shadows keep us hidden. Since the heat kills the sperm, I went all out with the creampie.