CAWD-601 — One week after my mother's remarriage and moving in together... Unable to resist my sloppy sister's defenseless plump butt, I lose control and cum inside from behind — 有栖舞衣

About this work

Everything changed suddenly when my mother remarried and I had to move in with my stepfather and stepsister. My sister Mai was stunned when she first saw me. “You said I'd get a little brother — I didn't expect someone a year younger... I thought it'd be a kid.” Maybe she felt uneasy about living with such a big brother. I felt a bit guilty. But after a week she seemed used to living together and started wandering around the house in loungewear that left her large butt, almost like underwear, exposed. “Don't stare. It's our home — isn't it fine to wear whatever?” No, no — when she dresses like that I can't stand it! Seeing her defenseless, sloppy butt gave me an involuntary erection and I bolted back to my room to masturbate. My sister, who didn't care about my sexual situation, kept showing off her sexy butt every day. She fell asleep on the living-room sofa with her butt exposed... I couldn't help myself and touched her big butt... Soft... dangerous, it's becoming addictive... While I was frantically groping, she woke up. “What are you doing? Stop… we're siblings.” I know that... but my reason was gone... Mom, I'm sorry! But there's no turning back!! I buried my face in the soft butt flesh, rubbed my groin against the crack of her butt, and then slid in from behind... Oh my... the way that flesh ripples is irresistible... It felt so good I pounded wildly! Without thinking, I poured thick semen deep into her womb... I did it... incest... family destroyed... The next day she acted as if nothing had happened. She didn't tell our parents... maybe she didn't hate it? Emboldened, I started sneaking around to chase her butt whenever I could avoid our parents' eyes...