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Chapter 8: Bigger 

Working on the laptop in his room, still during his absence, Leon is called by Hannah, who appears on the screen dressed very seductively, showing all her big muscles. She tells him exactly what to do and Leon is going to obey...

Back in the parental home, Hannah and Hailey confess to each other that, against their agreement, they have horsed around some with Leon at a distance. They promise each other to hold off for now, until he returns. The scene continues with the big musclegirls messing around with little Frankie. But there is a peeping tom watching, and Hailey is going to confront him...

It's then finally time to return home. Picking his son up at the airport, his dad tells him that the girls have grown a lot, and that he is in for a surprise... Then Leon arrives home, and sees his sisters' new shape. He is blown away, as will you be, dear reader...

This chapter contains lifting, throwing, intimidation, incredible comparisons, flexing, worshipping, scissoring, a superhot online session, and so much more...


Muscles in the Family is a long female muscle growth series that tells the story of two girls who want to get bigger for one boy. Hannah and Hailey, starting out at thirteen and twelve years old respectively, have a crush on Leon. Leon is from a different mom and dad, but they have been living together ever since Hannah and Hailey's mom got together with Leon's dad. For all practical purposes, they're siblings.

134 pages

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No characters are nude or participate in adult action when they are minors.