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Rated: 18+ · Interactive · Erotica · #1912090
Grace receives a device that can change about anything, but with warnings.
This choice: Change Erin's past so she started working out with Grace a year ago.  •  Go Back...
Chapter #4

Change Erin's past so she started working o...

    by: atc Author IconMail Icon
At the diner, Grace noticed another side effect of the device’s work; without even ordering the waitress brought Grace her new “usual”: a giant 10 egg white omelette, with a similar 6 egg version for Erin. As she wolfed down her breakfast, Grace decided to see how the rest of the day went before making any other changes.

...

Going to the gym just felt weird. She’d only been there a couple times, but everything felt so routine. When she stepped out of the locker room, she found Erin already waiting for her at the weight benches, waving her over.

She counted up the plates on the bar in her head and reeled: 400 pounds.

Even though she feigned confidence to Erin as she laid down on the bench, inside, Grace was terrified. She’d never done a real bench press before, just once or twice with a machine. And even at her new size this was nearly twice her weight.

Grace took a deep breath and let instinct take over. She placed her hands precisely where they were supposed to go, and with a small grunt pushed the bar up off the rack and lowered the massive weight onto her chest.

And Grace pushed it back up! And again. And again! Grace grinned as the 400 pound barbell hardly felt heavy at all. So this was what it felt like to be strong. After 12 perfect reps, Grace racked the weight and sat up on the bench.

“Do you need another warmup set, or are you ready for the real weight?” Erin asked.

A cocky grin broke across Grace's face.

"Let's do this!"

Grace pushed out several more progressively heavier sets, each one a bit harder as weight and fatigue took its toll. She started to falter a bit at 675 pounds.

Grace could feel the burning in her pecs as she struggled through the last couple reps. Grace racked the weight and sat up on the bench, panting and dripping with sweat, Grace was amazed at her fantastic strength, but in the back of her head, she felt... disappointed?

"Take an extra minute to rest. I'll add another 10 pounds," Erin said, handing Grace her water bottle.

Grace turned to look at her workout partner in shock. Erin put her hand on Grace's pumped shoulder and smiled.

"Don’t worry, I’ll be here to spot you."

It took four more sets before Erin let her stop, adding a little more weight each time. By then, Grace had grit out 3 reps at 725 pounds, a new personal best.

...

Grace laid in her now somewhat undersized bed that night, still marvelling at the weight and heft of her pecs, feeling them bob up and down with minimal effort. It was too bad that she seemed to have lost what little amount of breasts she had, but maybe that was something the device could fix.

The device.

Grace pulled out the small object and reflected on all it had given her. And how much had also come from Erin. Grace typed in a new command:

Erin started working out with me from the beginning.

Like before the device said the changes to the universe were minimal. Grace hit enter on the device before drifting off to sleep.

...

As the early morning sunlight filtered in through the blinds, Grace’s thoughts returned to her one by one as she slowly regained awareness on the world around. She noticed how heavy her muscled body felt.

She noticed that she had apparently went to sleep in the nude, which was something she never did.

She noticed that her normally shoulder-length hair was hanging down in her face, obscuring her vision.

She noticed that her bed felt bigger and softer than it should’ve.

And she noticed that she wasn’t the only person in her bed.

“Morning, lover.”

A hand pushed aside Grace’s stray bangs as Erin leaned in for a passionate morning kiss.

Grace tried to move, but her arms were tangled up in the plush duvet that now covered her bed. She wasn’t into girls and neither was Erin. What the hell is going on?!

As her roommate's tongue pushed past her teeth Grace felt an odd familiarity, like this was normal. She felt her resistance soften as she found herself kissing back.

The now queen-sized bed creaked as Erin shifted around until she was straddling Grace’s hips.

Grace’s eyes widened in shock. Erin was huge! At least as big as Grace was yesterday, if not a little bigger.

“Oooh! I love seeing you first thing in the morning. Your abs are just a little bit tighter then.”

Grace couldn’t even see her abs over her massive pecs, but she could feel Erin’s fingers run over the hard ridges on her stomach. Erin rocked her hips. Smooth, freshly-shaven skin tugged at Grace’s labia, sending tingles of pleasure up her spine.

Grace arched her back in response, taking in the new body of her new lover. With the additional 6 months of training from the device Erin was easily as big as Grace. Erin noticed Grace’s glances and gave her bulging arms a playful flex.

“22 inches as of yesterday,” Erin said before dropping her head with a coy smile.

“But no matter how hard I work, I can never seem to catch up to you.”

And just like before, new recollections of Grace’s measurements popped into her head. The one that came to the forefront was her arms: “26 inches cold, 27 pumped.” Was that true, she thought. Was she bigger too?

Suddenly, scores of new memories from the past year flooded into Grace’s mind. Their first day at the gym. Trying to figure out the machines. The soreness of those first few weeks. How they celebrated when their abs first started to show.

Intense, late night workouts. Gorging on protein bars and shakes. Urging Erin on through grueling bench presses. Sitting on each other’s backs while grinding out calf raises. The conversations between sets.

The awkward first kiss. Eventually taking it farther and farther over the weeks until they’d made it official and started sleeping in the same bed about four months ago.

Grace was snapped out of her spontaneous recollection by the alarm on Erin’s phone.

“Oh, dang. We’re gonna be late.“

Grace looked to the clock. It’s 6 am. They didn’t have class for four hours.

“C’mon. I know how long it takes to work your legs. If we don’t hurry, you won’t get a good pump before we have to go to class,” Erin said, nudging, Grace out of bed. “Now, hurry up and get changed.”

Erin slipped on a robe, picked out some clothes for Grace and tossed them on the bed before heading to the kitchen. Grace finally escaped the mass of sheets, bedspreads and fluffy pillows that had confined her. She could instantly tell she was heavier as she stepped over a full length mirror that was now in her their bedroom.

Grace gasped in amazement. She was definitely bigger than yesterday. Additional pounds and inches of muscle bulged out in all direction, making her look like she was carved out of granite.

The next thing Grace noticed was that she now had a light tan. She could clearly remember arguing with Erin about the dangers of tanning. And how Erin had won her over by telling her how great it would make her abs look. And now that Grace could see them, she had to admit, Erin was right. As Grace shifted her hips, her deeply etched 8 pack and thick obliques looked amazing, especially offset by her meaty glutes and 38” thighs.

Grace’s hair was also at least 3 inches longer than she normally wore it. Before she could even question it, the answer bubbled up into Grace’s mind; “Erin likes it longer.”

Grace wriggled into the tiny bike shorts and sports bra Erin had laid out for her. For some reason the barely adequate clothing felt completely normal. Grace pulled her lengthened locks into a ponytail, marveling at the cantaloupe-sized bicep that twitched to life with the slightest flex and her massive wing-like lats that pushed her arms away from her torso. She was truly gigantic.

Grace slipped into the bathroom and stepped on the scale to see the true measure of Erin’s assistance.

260. Erin’s help had netted her another forty pounds of muscle.

Grace stepped out of the bedroom and into the kitchen. Without saying a word, Erin handed her a huge protein shake and stole a kiss on her way to get changed herself. As she took a pull on the thick chocolate shake, Grace finally noticed Leah sitting at the kitchen table, nursing a cup of coffee and looking generally haggard.

“Um... morning. uh... late night?”

Leah just sat a glowered at her for several seconds before speaking.

“You know, you two can have all the freaky muscle sex you want, but can you at least try to keep it down during the week? I bet I’m not the only in the neighborhood you’re waking up every night.”

Before Grace could respond, Erin stepped out of the bedroom wearing an identical outfit as Grace. Grace gulped down the rest of her shake a headed out the door with the gym bag Erin had already packed for her.

Grace stepped outside and received another shock. Her car was gone!

Before she could fully panic, Grace again got that feeling that this was normal. She took a deep breath and thought, searching for a new memory to explain this. And there it was. Grace and Erin had both sold their cars a couple months ago in order to cover supplements and other expenses like the fancy new bed.

Grace turned around to see Erin’s smiling face as walked up wheeling a pair of heavy duty mountain bikes.

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