Charlotte's head perked up when she heard the audible gasp. Leaning around the door frame to gaze at her sister as she stared at herself in the mirror. What awaited her was a sight to behold. In the midst of using the bathroom Lily had put on a pair of red panties, but the most noticeable of all was the tight blue shirt to fought to contain her growing body! What was mistaken as a gasp of pain was that of pleasure however as the blonde was busy groping her breasts, her hard nipples practically tenting the fabric, clearly enjoying the feeling of the tight fabric rubbing against those hard pleasure mountains.
Lily heard her sisters gasp and she turned her head suddenly, her perfect blonde hair whipping around before settling down perfectly. As she turned Charlotte's eyes widened as she was greeted with a familiar symbol on the shirt. The signature red S and yellow shield of the comic characters Superman and Supergirl! Bits of her dreams were coming back to her, imagining her sister wielding that sort of power, hovering gently in the air, in a skin tight costume and all! She felt her legs quiver before she collected herself.
"Hmmm? Whats up sis?"
Charlotte silently took a breath before finally speaking.
"Oh...um I heard a gasp....I was figuring you might have hurt yourself..."
Lily smiled brightly, had Charlotte gazed in just a few seconds earlier, she would have seen the spectacular sight of her sisters breasts expanding in size! Quite literally after she had just donned the tight blue Supergirl shirt. But she still wanted her sudden growth spurts to remain a secret, so she played it off. She twirled around slowly on one foot to somewhat show off her less than modest outfit.
"Nah, I'm fine! Just loving how I look is all~ Well anyway, bathroom's all yours sis!"
She said, walking by her and waving her off. Charlotte was left there, nearly a jealous mess. So close to being rendered into a quivering girl if that scene lasted any longer. She sighed and started to get ready for her shower.
Lily on the other hand was back in her room, gazing over herself in her own mirror again, making a number of cheesy superheroine poses along with the typical poses you'd see in a fashion magazine.
"God damn! I look fucking incredible! Mmmm and this shirt~ To be Supergirl~ If only."
She giggled at the absurdity of it all, despite her fantasies she knew none of that was possible...
Finally she decided to get fully dress, pulling a pair of tight blue jeans over her legs, her full ass perfectly pronounced, turning around to get a clear view of it in the mirror before jokingly smacking it and giggling. Clearly enjoying all of the changes she has been going through this past month. Deciding not to wait for her sister she grabbed her things and decided to head for school.
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