[THTP-083] Quay pm về việc quan hệ tình dục giữa anh em ruột

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The editorial department receives submissions from various enthusiasts. All are earnest, but among them, we have included the submission of siblings who have entered into a forbidden relationship. The sister has an exemplary background, excelling in both studies and sports since her childhood, progressing to an elite girls' school in her hometown, and eventually marrying after workplace romance at the company where she was employed after university. The brother faced troubles with classmates during his school days, remained absent from school, and eventually dropped out, currently living with his parents at their family home. He is what is commonly referred to as a "hermit." The siblings developed a sexual relationship, which also evolved into an SM dynamic. The brother dominates the sister, but there were also times when the sister dominated the brother. Within their inseparable blood bond, they indulge in each other's desires, recording the forbidden tale of sibling SM.