Can I endure my sister's serious seduction? Peach butt Kanon

When I returned to my parents' house for the first time in a while, I saw a younger sister who became a high school girl and became so cute... What's more, my parents were away for a long time and ended up spending time alone with my younger sister who has transformed into a super cute high school girl! My little sister Kanon is seriously seducing me, like that!? I'm so excited by the nipples hidden from my loungewear! I was taking a nap in the living room with my panties exposed, and I was wandering around the kitchen with just a bath towel...I came into my sleeping room and my hard cock was gently stroking while masturbating, and I was on the verge of explosion! Will I be able to withstand my sister's serious seduction? ?