"Well, it's a shame that you have the shrinking disease! But just because you're tiny, that doesn't mean you should give up on your fitness! Right, Mark?"

The tiny man sighed. He appreciated that his sister cared about his well-being, but he wasn't sure about being dragged - quite literally - into the front yard of their house, then tossed over the mat that she had spread over the lawn.

She had developed this fitness kick lately, and she clearly wanted her shrunken brother to share her hobby, no matter his opinion. After all, since Mark shrank to a size of three inches, his opinions had become quite difficult to listen to.

Cindy giggled. She towered over her minuscule brother, her shadow blocking his access to sunlight as he tilted his head to be able to look at her towering body.

From his position, the woman stood as tall as a building, and he felt insignificant as he observed her casual movements, whose impact was still tremendous over his shrunken form.

She was bending down so that she could untie her shoes, kicking her sneakers to the side of the mat.

He felt the weight of the discarded shoes as they landed on the floor with tremendous shockwaves, and he reasoned of how he could fit inside each piece of footwear several times.

Then, once the girl had removed her socks as well, she stepped into the pink object, which started trembling from the simple act of her putting her foot on it.

“Mark!” the girl said as she saw how the tiny man was almost tripping from her step. “See how you can’t even stand straight whenever I step close to you? That’s a sign of weak leg muscles… good thing I'm here to help you work out!”

He shouted something at her – “I think that’s a sign that you’re just too fucking huge!”

But she didn’t even listen – instead she was ready to spout her first orders.

"We should start with some stretching!" the woman said to her tiny brother. "Just look at what I'm doing and imitate it, okay? It's pretty simple!"

Cindy crouched over the mat, standing on all fours over the ground, her lower leg stretching for several meters and her naked soles exposed to the sun as the top of her foot rested on the pink plastic.

As he looked at his giant sister getting into position, Mark was conflicted.

He couldn't help but stare at her toned ass, outlined so nicely by the tight exercise wear she was wearing. Since Mark had shrunk, he hadn't had any chance to meet girls, and despite his better judgment, he found himself quite attracted to the feminine charms of his sister.

As his eyes were focusing on the giant ass, his gaze so intense that it seemed like it could burn through the fabric, Cindy turned in his direction and cheekily smiled at him. "I see you, little bro... do you think it's okay to do that?"

Mark froze - he had been caught by Cindy while staring at her butt. He was prepared to make up some excuse, to say that he was only trying to copy her position, then she spoke again.

"Do you think it's cool to just sit down doing nothing? Come on... You need to get on with the stretching!"

He breathed a sigh of relief - maybe she hadn't noticed where he was looking…

"Y-yeah!" Mark said as he attempted to get in a position much like the one Cindy was doing.

"Just like that!" said the girl, watching the tiny frame of her brother copying her own stance. "Make sure you really feel the muscles stretching... hnnnggg!"

Mark thought he was doing good - was he really feeling the muscles working, or was he just imagining it? But just as he thought he felt the supposed benefits of his stretching, something else came up, something much bigger, smellier, and overwhelming, despite its softness.

Toes.

The rounded, shapely bottoms of the girl's digits came upon the tiny man, pushing him through the mat and dragging him for multiple meters, which were of course just a few centimeters to the giant girl.

"Oops…” he heard her voice squeal. “Was that you, Mark? Did I get you with my foot?”

She couldn’t help but crack up as she saw how he had become entwined to her toes, buried under the multiple digits of the girl.

“Sorry!” she said as she twirled and stretched her toes in an attempt to set him free.

“I must admit it’s kind of dangerous to share the same mat… it’s a shame I don’t have another to spare… even though one of these my size is kind of overkill for someone like you!”

The girl looked around for something she could use in place of the mat. “I know!” she said as she readjusted and stretched her arm to pick something up from the ground.

Mark saw how she had laid out one of the socks she had just removed over the grass. “Well it’s not ideal but… the size is just right for a tiny guy like you!”

He tried to protest but it was useless.

“What, why are you complaining?” she asked. “Did you want to share the same mat I’m using? Yeah, I did too, but as you saw, it’s kinda risky!”

The girl beamed at him as she put Mark over her white ankle sock.

“Well, it’s probably a little stinky, I went on a run this morning after all…” she said with a little concern, her brow furrowing as she saw Mark standing over the sock. “But with you being tiny and all, I don’t think your sense of smell is functioning normally, right? So it shouldn’t be an issue for you…”

The tiny man shook his head in disbelief. He didn’t know how his sister had gotten this concept that with being tiny, his sense of smell was worse. In fact, at his reduced and pitiful size, the scent of the sock was overwhelming, and he wished he could just run away from the sweat-soaked fabric.

But as he tried to escape, he was met with the girl’s imposing, manicured index finger.

"Trying to slack off?" she pouted, stopping him in his tracks with a simple gesture. “I said we’re going to exercise this morning… don’t think just because you’re tiny you can skip this!”

“Get on the sock, err, your mat, and let’s keep doing our routine!” the girl said.

“Next…” she said as she took on a pensive expression, trying to figure out an appropriate workout for her tiny brother to perform, “how about some sit-ups? You know how to do these, right?”

“Just lay on your back… nice. Okay, now I’m going to hold your legs down to help you…”

Mark felt something holding down his lower body and as he tilted his head a little to look, he saw the girl’s gigantic pedicured toes gently imposed over his feet and legs.

“Cindy!" he tried to protest. He was already lying down on her sock, but that didn't mean he wanted to have her toes over him. "Why your toes?"

“What are you saying, bro?” the girl asked. “I can barely listen… I should have probably brought the phone with the amplifying app but I wanted no distractions during our workout! Come on, get on with your exercise!”

She watched him as he resigned himself to perform the situps under her scrutinizing gaze. “One, two, three…” she chirped.

She encouraged him to keep going. “Come on! I want you to do a whole set of ten!”

“Seven… eight… already giving up? Weak…”

Mark had collapsed on the ground, panting from the exertion and trying to recover. “You can remove the toes now…”

“Huh?” the girl said. Somehow this time she had been able to listen to what her brother had said. “You couldn’t even complete one set… do you think you can make demands, bro?”

She giggled as she covered him with her big toe, comparing the little man to its length. “You shrank so much lately, Mark… soon you’ll even be smaller than my toes! That’s why you really need to stay on top of your physical strength! The smaller you get, the more important it is to keep your vigor!”

“Cindy!” the man shouted from under the bulky toe’s weight. “Get it off me!”

“Okay, okay!" the girl said as she let the toe retreat from his upper body but still maintaining a hold over his legs. "It's time for your second set now!"

"Already?” he protested.

“Get on with it… if you don’t want to go back under my toe!”

The man sighed as he began working out again under the imposing presence of his sister’s toe. This time, however, the toe had reached so close to his groin that he found it brushing against his crotch, inadvertently massaging his groin, especially as he raised his upper body when performing his sit-ups.

"Four, five, six…” the girl counted, unaware of how her tiny brother was becoming aroused under her massive skin. Her presence, closeness, and warmth all made Mark very close to coming.

“Seven, eight, nine…”

The tiny man almost felt like he was going to explode – both in his pants and in his abdomen, overworked by the straining exercise. “One more -” he told himself. “I just need to do one more and this will be over...”

“Ten!” Cindy finally chirped – and Mark fell to the ground panting as he ejaculated in his pants.

Utterly ashamed from the way he had given in to his sister’s toe, he saw her blissfully unaware smile as she clapped to him. “You managed to do ten this time, bro!” she said. “Good job… I wonder what gave you that extra motivation!”

“Yeah… I wonder,” the young man said.

“Now…” the girl sang, “It’s your turn to help me up!”