GS-208 While my parents were out, I was aroused by my sister's bare legs and tight white panties as she napped. I couldn't help but get an erection! Unable to hold back, I rubbed my erect dick on her... and ended up having forbidden sex with her, cumming

While my parents were out, I was home alone with my little sister. Then I couldn't take my eyes off her bare legs and tight white panties as she napped! Her completely careless and unguarded figure made me instantly hard! Unable to hold back, I rubbed my erect dick against her, but then she woke up—shit! But the sister who woke up also got aroused by the erect dick in front of her? And then we had forbidden brother-sister sex with internal ejaculation!