Back to having fun

Jim showered up and got dressed for the workout while Liz went down and set up what weights she thought she could handle. She noticed herself in the mirror after she slid on all the weights and walked over to it. “Wow” she said, not getting a chance to really look at herself since this morning. She was dressed in another wife beater like earlier, only this time she left it completely untied, when she was getting dressed she was careful to try and tie down her sensitive areas, not wanting to cause another incident, so both her nipples were… well, she didn’t want anything to touch them, “jeez, how do I protect these, they are nearly as big as Joshy’s peni-…” then she got an idea. Sneaking into her brother’s room while he was in the shower, she absconded with two of his condoms, then and clumsily slid them over her enormous nipples according to the directions. “That should help!” she smirked admiring for a brief moment the fact that they were a tight fit. She then shifted her concern to the rest of her breast.

Since the wife-beater she wore was still pretty loose, the front hanging just a few inches below her areole, she just had it draped over her flaccid nipples, causing easily identifiable outlines. She didn’t really think this through however, because if you couldn’t feel anything through a condom, nobody would use them, so now she felt the sensations of the loose shirt brushing them, as well as the gripping sensation of the snug latex. Her cock however was much better protected, she again stuffed it into her vagina and slid on a pair of Josh’s tighty whities, which this time around were much more tighty, and secured her cock well. In addition to this, her improvised spandex cutoffs were also a part of this, being snug but not too snug. In order to fit her legs through them though she had to cut the holes diagonally so half of each buttcheek was showing. There was a noticeable curved bulge in her front, but the cat is out of the bag, so all she has to do is control it. Admiring herself she began to flex, admiring the softball sized bicep that rose in her arm, and cooing softly at the sensation. She began to pump both her arms, both watching the mounds rise astonishingly high, and soaking in the sensations.

Josh was coming down the stairs dressed in a tank top and, knowing he’ll need the extra space, extra baggy shorts, as he was hit with the sight of his 19 year old sister admiring her huge muscular body in the mirror as she flexed, as every contour was freely on display since she was essentially just wearing underwear. In the mirror he could see her bare abdominals pulse with each breath, glistening interestingly, as Liz was flexing herself into a light sweat. His penis was already semi-erect from just entering the room with his younger, amazon sister. He started walking up as he noticed the barbells set up to.. “400lbs? Are you serious?” he exclaimed, breaking Liz out of her muscle lust.

She walked over to the bench, “Yeah! 100 was getting pretty easy yesterday, and I have grown soooo much since then.” Liz knew he got turned on by hearing about her growing bigger, She smiled at Josh as he began to breathe heavy looking at her with wide eyes. She did a double bicep pose for him. “That last growth spurt was way more **** than any of the others I had,” Josh’s chest was rising and falling more dramatically as she went on, “and it didn’t dawn on me until ten minutes ago what I did in the car that made me grow so much more than all the other times I grew… maybe it was something I drank.” Liz knew this wasn’t the case, but she was trying out to see if her brother liked the idea of helping her grow. She winked as she leaned on the immense weight stacked on the barbell. Josh was breathing grew both heavier and quicker as his eyes widened further. “so that’s why I am lifting 400lbs if you want to know so bad Josh, I don’t want these big muscles that you helped me grow sooooo big to go to waste.”

Josh became short of breath, and had to sit down, but did so with his eyes locked on his sister as she walked around and laid on the bench and unracked the weights. As she did so her breasts wobbled, completely unrestraind. The only thing holding her lose wife beater still covering her nipples was gravity, and now she was on her back, Josh watched as the shirt fell helplessly off his sister’s glorious breasts, leaving them completely bare as she lowered for her first rep.