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Your sister is a genius! But it's unfortunate that all of that mental energy goes to making her life easier or her body fatter, usually both at the same time. Her chef bots are selling well, though you doubt anyone else has three actively cooking at all times to keep them fed. Let alone developing a weight gain pill on top of that.
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Your Genius Gainer Sister

Crossing the giantess has been progressing well, though Sarah has starting to grow as well, the crossing was beginning to have some complications, though none that were particularly unpleasant. If anything, Sarah’s increasing lust was rather enjoyable, though her continual growth might make things difficult.
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Crossing the Giantess - Part 2

She was absolutely gigantic. Estimates stated that she was at least 60 miles tall, but she was far far bigger than that. The difficulty with estimating it was that she just wouldn’t stop growing. She would certainly take a while to cross, so you and your traveling companion Sarah had better start climbing.
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Crossing the Giantess - Part 1

You arrive to spend Christmas eve with two girls who, when they wear their magical Santa hats can grow their bodies at will. But, which will end up bigger, and which will you spend your time with? This is Zara’s Route, the younger and more energetic of the two sisters.
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