Laura jumped as Vanessa entered the room, her nearly naked 6 foot 6 body having grown up from her previous 5 foot 4 inch height. She had decided to go straight to a tall, muscular and sexy; her thoughts drifting to her comic book hero, She Hulk. Laura had added enough muscle to outmatch her brother, but still wanted to start out slow, as she was unsure of how everything had worked out for her sister. Pulling her ruined top off, she blushed as she stood there topless, her large breasts jiggled across her powerful pectorals. The jeans had split and torn, but were still clinging to her inflated and lengthened legs.
Vanessa looked up and grinned. “Mind telling me what is going on?”
Laura chuckled nervously, barely taking in her growth and realizing that in fact she had made herself taller than her siblings, with muscles nearly as big as Vanessa. Her muscles were large, feminine and curved around her body sexily. Laura glanced at the phone, contemplating not telling her sister everything, but with a sigh figured the truth would be as easy to take then some lame lie she didn’t have time to put together.
“It’s, it’s a new ap that showed up my phone. It allows you to alter people. For real.”
Vanessa smiled, raising up her right up and flexing her 24 inch bicep and with a small grunt, causing it to rise even higher.
“You don’t say. And was I the first one you tried the ap out on?”
Laura blushed again. “Well, uh, yeah. Sorry.”
Vanessa giggled. “Don’t be! The muscles, the strength, this incredible expansion super power is erotic. Did you see the faces on those muscle guys out there? I thought Greg was going to pee in his gym trunks!”
Laura laughed. “Yeah! You seemed completely in tune with everything. How is that?”
Vanessa glanced back at the phone. “I don’t know. I just… Did. It was as if once you worked the ap, which you need to show me by the way, that I just knew what I was capable of. Did you realize how strong you made me?”
Laura shook her head. “No, not really. I didn’t know about the expansion ability either until after I hit apply. Are you really 5 THOUSAND times stronger? That would make you…”
Vanessa smiled confidently. “Fucking Supergirl, bitch!”
They both laughed at the completely out of character statement. As they both composed themselves Laura looked around.
“Well then. What now?”
Vanessa looked at Laura and smiled. “Well first thing we need to do is check out the ap. Then we need to go shopping!”
Laura giggled. This was the longest, most personal conversation they’ve had in years. And Laura loved it.
Laura pulled up the ap and showed her how it worked and they fiddled with their images. Vanessa saw that Laura had made herself ten times stronger, so she was nearly twice as strong as Greg. Vanessa let out a lustful breath when she saw she could move her strength even higher, grow even more muscular and have even greater muscle expansion. Vanessa moved all the sliders to show what that would do and pouted a bit when only the larger muscles showed any change on the 3-D model. Vanessa saved the changes, but decided not to hit the apply button.
The girls giggled and talked as they struggled to find clothes large enough for either of them to leave the house. Heading to the clothing store both girls got plenty of attention and the women helping them were shaking with fear, surprise and a bit of jealousy. Everyone was complimenting both girls on their looks and incredibly toned body. As they were driving home, deciding on what club to go to that evening, Vanessa pulled her own phone out of her purse.
“I should see about downloading the ap myself.”
Laura was driving and simply nodded as Vanessa worked her phone.
“There it is. I’m downloading it now.”
Within moments it was on the phone and when Vanessa opened it up it put out a warning.
“Note: This ap has been modified from the original and is now for display purposes only. The original Alterations ap had a major flaw that if activated was found to be dangerous. If you know of anyone with the original Alternations ap, please ask them to delete it immediately.”
A tone from Laura’s phone let her know that she had received a message and with both girls now concerned, Laura pulled into a parking lot of an auto body shop and pulled up the phone.
“It’s a message giving me the same warning and telling me that to delete the ap.”
Vanessa licked her lips. “I wonder if people had gone nuts with the ap. I’m going to Google it to see.”
Laura sighed when another warning popped up on her phone. “The Alterations ap will lock into the last profiles set, make the changes and alter history to adjust. Once completed, the ap will be deleted.”
As Vanessa was searching, Laura yelped, causing Vanessa to look up.
“What’s wrong?”
Laura nearly yelled. “The ap is going to be deleted! But not before it adjusts for changes and alters history! How can that be?”
Vanessa shook her head. “I don’t know, but from what I could quickly see on the web, there were only a few mentions of surprising muscle growth.”
Vanessa then paused as her entire body tingled and she shivered. “Wait, did you go back into the ap and hit apply for me?”
Laura shook her head, now even more concerned. Her eyes quickly widened. “Wait! The ap said it would apply the last changes saved before changing history and shutting down!”
Vanessa moaned as her body began to pulse and she opened up the door of the SUV and put her feet on the ground. Laura gulped, knowing she wouldn’t have time to see what Vanessa had done. So without thinking further, Laura tried to turn off the phone and when it wouldn’t shut down, pulled the battery. By this time Vanessa had taken a few steps away from the car. Laura jumped out to see what had happened.
As she looked at Vanessa it was apparent that….
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