C272 The roaming dragon became the mastermind

Dysmenorrhea? Upon hearing my sister's words, I was also taken aback. Unconsciously, my gaze also turned towards my sister. My gaze was completely subconscious. Just as I looked at the space between my elder sister's legs, my elder sister, after a moment of shyness, also lifted her head slightly. Just when elder sister knocked my head up, I immediately withdrew my gaze