``Is it true that if you rub it, it will get bigger?'' My sister, who has grown to a G cup in a year, has a B cup friend come to our house to find out the secret to getting big breasts. Apparently, the small-breasted naive girls were desperately massaging their small breasts after being lectured by their younger sister about how massaging them makes them bigger.

Even small breasts will become bigger if you rub them! ? My friends with small breasts gathered at my house after hearing such a story from my younger sister who has rapidly grown to a G cup in one year, and desperately massaged her small breasts in hopes of them growing! And my brother is masturbating while spying on me. However, his brother's vulgar acts are finally exposed! However, things take a different turn...