[Kuromahou Kenkyuujo (Nukaji)] My Sister's Boyfriend is so cute that I... [The Blavatsky Project]

When a shy little schoolboy gets locked out of his house, his girlfriend's older sister takes him in—and decides her little sister's boyfriend is far too adorable to resist. What begins as teasing curiosity, coaxing his very first climax with her favorite toy, quickly spirals into her straddling him on the bed and begging for every drop deep inside her womb. A playful femdom seduction where an eager virgin discovers just how overwhelming an assertive older girl can be.