As Scott stared into his bathroom mirror, already struggling to reach it, what he saw sickened him - a four foot nothing pipsqueak, donning only a pair of light blue Speedos. He had to fight his natural urge to cover up his junk as it bulged so obviously through the fabric, an unavoidable side effect of wearing a swimsuit designed for someone who hadn’t even gone through puberty yet.

His pitiful stare was interrupted as three thunderous knocks banged against the bathroom door, followed by the familiar voice of his sister, “Bro… What’s taking so long? Vicky and Ethan have already started outside. Hurry up!”

Scott took a deep breath, trying to collect his thoughts. He just needed to focus on getting through this, then he could get to the car and drive out of here. It was just one day, and it was already almost halfway through. “Alright, I’m coming!” Scott replied as he walked over to the bathroom door and unlocked it.

As he opened the door, Scott was immediately taken aback by the sight before him. He was slowly getting used to only reaching Jackie’s tummy, but in this case it was a sight totally unfamiliar to him. She stood before him, in all her curvaceous, yet athletic, glory. It wasn’t often he’d catch her in her swimsuit, and at this size it was hard for it not to take his breath away. But she was his stepsister. He should be disgusted by her child-bearing hips and toned stomach, her big breasts and faultless skin - yet he couldn’t help but stand in awe.

“Oh. My. God. Scott, you look perfect!” Jackie squealed as he pulled the door open, and unwillingly displayed himself to her. Squatting down to his level, Jackie got a better look at him, her eyes drifting down towards his crotch as the backs of her fingers lightly brushed against him.

Scott watched as her eyes moved across his body, descending, before reaching his junk and widening with shocked delight. “Wow bro! You got a pretty big dick for a little guy.” she pointed out as she reached out to grasp at it through his Speedo, wrapping her fingers around the bulge.

Scott pushed back, only causing her to tighten her grip around it. “Ah, ah, ah! I can’t imagine it’d be all that enjoyable if I were to tug this too hard!” she said as she perused further, using his bulge as if it were a leash on him. She continued, gently squeezing it in one hand as if it were a stress ball, “This thing must’ve been over eight inches when you were regular sized… Too bad you never got to use it before… Well, you know…”

“Please, Jackie! Get off of me!” Jack begged, squirming in her grasp and trying his best not to get erect from the constant caressing. “Is wearing this stupid thing and waiting on you not good enough?” he asked, his face showing real defeat and restraint, in spite of how his body was beginning to react to her.

As his cock began to grow in her hand, Jackie’s eyes widened as she feigned disgust “Oh my God, are you getting hard? I’m your stepsister for fucks sake! What a perv!” she shouted, giving his bulge a painful squeeze before finally letting go.

Scott moaned in pain as his cock and balls felt as if they’d explode from her squeeze, before she finally released him and he dropped to his knees in relief. “Get the fuck up!” she shouted, “I’m done waiting for you.”

Climbing to his feet, Scott meekly followed her downstairs. As they walked, her fat ass swayed in front of him, the huge mass of it blocking him out from the sight of anyone in front of them. Her black bikini bottoms did very little to contain her monstrous behind. She had opted for a regular fitting bikini, but it was near impossible to tell as her ass engulfed most of the fabric - leaving only a slither of black between her cheeks.

Once they got outside, Vicky was already on a sunlounger trying her best to catch a tan. Hearing their steps, she looked over and lifted her shades up onto her brow, “Oh, I was wondering when you guys were gonna get out here…” She sipped on her cocktail, watching as Jackie came over and got settled onto the sunlounger beside her.

As Jackie’s ass sank into the lounger, her jaw dropped as she finally got a good look at Ethan, “Oh my God, he’s tiny!”

“I know right? He barely comes up to my crotch now!” Vicky replied, ruffling his hair as he stood obediently beside her, awaiting orders. “Little Ethan here had a busy night. Didn’t you, little guy?” she asked.

“Y…. yes, Miss Vicky.” Ethan replied submissively, his gaze never leaving the floor beside her as he spoke. Scott gulped hard in fear. Was he destined a similar fate, but from his own stepsister nonetheless?

“Oh my God, Vick! You’ve got him saying miss!” Jackie laughed, as she lay back comfortably.

“Well he is my cabana boy. I figured it was only fitting.” Vicky explained, grabbing Ethans chin to make him look up at her and squeezing his cheeks.

“Hear that bro? You might wanna take some notes!” Vicky said as she tightly squeezed his shoulder and pulled him up beside her, to stand in position like Ethan was for Vicky. Scott wanted to curse her out as she commanded and dragged him about, as if he were nothing. But held his tongue out of self-preservation.

“Grab the lotion from the kitchen counter for us, bro.” Jackie commanded, clicking her fingers at him condescendingly. Scott made haste towards the kitchen, fists clenched as he tried not to think too much about the embarrassment of being his sister’s “cabana boy.”

“Ethan, why don’t you get Jackie one of these delicious cocktails from the kitchen too?” Vicky asked, peering at him over the top of her sunglasses.

“Sure, n… no problem, Miss Vicky!” Ethan stuttered in response, quickly following Scott into the kitchen, eager to catch up with him.

As Ethan stepped into the shade of the kitchen, he caught Scott attempting to climb up onto the counter to reach the suntan lotion. “Hey man, sorry to see you’ve shrunken so much,” he said as he reached up towards the table, attempting to grab one of the premixed cocktails Vicky had brought.

“Yeah it all happened so fast. And Jackie… Well Jackie…” Scott began, his mind wandering back to yesterday. He looked towards the garden out of fear, glad to see she didn’t seem to be paying them any attention for the time being.

Cutting him off before he could get into it, Ethan replied, “Say no more man. I understand.” Scott smiled in response. He didn’t know the full extent of what Ethan had been through, but given how he was addressing Vicky, he figured it wasn’t too far from his own experience.

Filling Jackie’s cup, Ethan waited for Scott as he attempted to push his torso up onto the counter to reach the suntan lotion at the back of it. As he sprawled his body across the surface, he stretched his arm out, only barely reaching the half full bottle and pulling it back with him. “Alright, got it.” Scott said aloud, feeling a small sense of achievement that he was still able to reach, no matter by how slim a margin.

As the pair made their way back outside, Jackie asked, “What took you guys so long? We’re wasting daylight here. I want a tan, not to look like a lobster!”

“Sorry, we wer-” Ethan began, as he handed Jackie her drink.

“We don’t care, Ethan! Cabana boys should be seen, and not heard.” Vicky shouted back, snapping her fingers and pointing beside lounger. Knowing what that meant, Ethan quickly made his way back to Vicky’s side and stood there patiently awaiting further instruction.

Scott watched as Ethan so obediently followed Vicky’s orders. He looked towards Jackie and the space by her sunlounger. Something inside of him, something perhaps instilled in him by the beating yesterday, told him he should follow Ethan’s lead and stand by Jackie. But the man in him fought to resist. Sighing, he moved into position beside his stepsister, trying his best to convince himself it was of his volition and not out of fear.

“Well?” Jackie asked, looking at Scott quizzically.

“What?” Scott replied in confusion, holding the bottle of suntan lotion tightly against his chest.

“We didn’t ask you to get the lotion for no reason, Scott. Are you going to put it on us or not?” Jackie spat back as she turned over onto her front.

Scott wasted no further time in squirting the lotion onto his hands, rubbing it between them to get a thorough spread. Tossing the bottle over to Ethan, he reached down towards Jackie’s back and began to rub the cream across it.

Jackie moaned quietly, “Aw yeah, this is the life.” Trying his best to ignore her, Scott continued to rub the cream across her body. As he moved to her lower regions, his heart thumped in his chest. He really didn’t want to rub his hands across his own sister’s ass. It was such an intimate task. Could he really? He paused for a moment, looking over to Ethan performing the same task seemingly without the same internal battle. But he wasn’t related to Vicky...

Totally unphased by it, with eyes shut, Jackie asked, “What’s the hold up back there?”

Shaking himself from his pause, Scott replied, “Sorry Jackie!” He continued further down as Jackie lifted her head from the lounger for a moment to take a huge gulp of her drink. As his hands moved from the small of Jackie’s back to her ass, her flesh beneath his hands changed considerably.

What had previously been tight skin and bone, quickly turned to her fat ass, accentuated by a huge crease where it hung over her thighs. Scott couldn’t help but feel the slight twitch in his dick as his hands rubbed across the soft and pudgy skin, even more so as they neared her crack and explored lower, towards where her vagina lay just beneath her bottoms.

Not wanting to get hard in front of Vicky and Ethan, nor Jackie really, Scott made haste further down her body. He rubbed his hands across the backs and insides of her thighs before moving onto her calves and the bottoms of her feet.

As the boys lathered the girls up, ignoring them completely, Jackie called over to Vicky, “Hey Vick!”

“Yeah?” Vicky replied simply, looking over to Jackie and pulling her sunglasses down onto the bridge of her nose to see her better. She rested her head on her hands, enjoying the feeling of Ethan caressing her body so thoroughly as he applied the lotion.

“I was just thinking…” Jackie began, taking a sip of her drink, “All my life I've wanted a guy bigger than me, stronger than me. Y’know? Someone who could just pick me up, sweep me off my feet. That whole thing.”

Vicky laughed, “I know exactly what you mean! Maybe we’ve had it wrong this whole time. I’ve been loving having all these little guys around, I don’t think this virus is quite as bad as they’ve been saying.”

“I couldn’t agree more!” Jackie responded, flashing her friend a wide, toothy grin. She continued, “I think it’s gonna be hard for me to go back, now that I’ve seen the potential of a fun-sized guy. Take Scott here, for example. He’d never be caught dead doing this, forever the stubborn, annoying dweeb.” Turning her head for a moment, she nudged it towards him but he kept his head down and hoped her attention would move on.

She looked back to Vicky, explaining, “Even just a few days ago, I wouldn’t have given him a second look if I could’ve helped it. But now, I think he’s kinda cute. He’s still a dorky perve. But his tiny little hands on my ass? I could get used to this sort of treatment.”

Vicky almost choked on her drink, “Jackie! He’s your stepbro!”

Scott was thankful for Vicky’s intervention. Jackie’s slowly evolving interest in him, especially considering he couldn’t stop her advances, was unsettling. He thought back to the irresistible temptation he’d had to masturbate, just after she’d beat him within an inch of his life. This wasn’t right, yet he had little control over her, nor his own, feelings.

“So? We’re not really related! We can be honest here, right?” Jackie replied confidently. She countered, “So you’re telling me you’re not enjoying little Ethan over there, waiting on you? And this is only the earlier stages of the virus. Can you imagine what it’ll be like when they get, like, crazy small?” She held her hand out beside her, trying to show Vicky the different sizes they’d be, going so far as to even show the distance between her finger and thumb.

She let her mind wander, “So small that they couldn’t resist… And when you’re bored with him, you could just keep him in your purse.”

Vicky laughed, “I can think of a few other places to keep them too!”

Scott paused upon hearing this, his mind racing. They wouldn’t really take this that far, would they? His concern was quickly thrown from his mind as Jackie shouted, “Hey! I didn’t give you permission to stop!” Scott quickly got back to rubbing, and Ethan, having never stopped, made his actions more deliberate just in case.

As the day progressed, Jackie and Vicky chatted amongst themselves while their two cabana boys stood to attention, baking in the sun. They’d periodically refill their drinks, and less frequently reapply suntan lotion.

The girls seemed to be slurring more, and the few times they actually got up from their loungers were laughable attempts to function. Neither Scott nor Ethan laughed. They dared not challenge how much the girls were seeming to drink either, in spite of what the end result may have meant for them. Thus far, Jackie and Vicky had been fairly tame. But that was what one might expect with sobriety. And they had departed that station long ago.

Suddenly, the calm of their garden was disrupted as Jackie sprung to her feet. Before Scott could react, she lifted him into the air as if he were nothing more than a doll to her. Scott screamed out, pushing at her and kicking his legs wildly in an attempt to escape her grasp. Jackie only laughed in response as she carried him over to the pool, stumbling all the way. Vicky watched with eyes of intrigue, Ethan’s of horror.

“God, you barely weigh a thing!” Jackie said, approaching the side of the pool. “Neither of you have had any lotion put on, don’t want you to get burned now. Do we?” she asked, tossing Scott into the pool with no trouble at all.

“You know what? You’re so right, Jackie!” Vicky followed, clutching at Ethan too and dragging him with her to the pool. Her attempt with Ethan was met with even less resistance, due to his smaller size and more broken spirit. The two girls jumped into the water together, Vicky with Ethan’s small form clutched tightly against her stomach as if he were her favourite toy.

Fearing what was about to come, Scott swam desperately away from Jackie. Tired from the struggle, he tried his best to push off the bottom, met only by more water as he failed to reach it before becoming fully submerged.

Jackie wasted no effort in stepping towards him and grasping him by one arm. As she pulled him into her, she wrapped her arms around his torso and tied him into a bearhug against her. Scott flailed, kicking at her legs in an attempt to push away.

“Remember when we were little,” she began, ignoring his futile attempts to escape, “What was that game we used to play?” Feigning thinking about it, in spite of knowing fully well what it was, Jackie paused for a moment. She continued, “Oh I remember! Dip the sis! But that doesn’t work so well here… I know! Dunk the punk!” Jackie dragged Scott below the surface, moving her body on top of his and keeping him pinned beneath it.

Vicky watched in awe, Jackie was really going for it! She quickly followed suit, with Ethan already held tightly against her. He hadn’t tried to squirm away, nor had he ever done something similar to her when he’d been at full size. But she’d enjoy it all the same. She pushed Ethan beneath the surface, replacing a terrified scream with the gurgling of water.

Ethan tried his best to swim out from beneath Vicky, but she kept him easily in place. He hadn’t had a chance to breathe and could quickly feel his body begging for oxygen in just a matter of seconds.

Jackie, on the other hand, had much more of a battle on her hands as the slightly bigger Scott thrashed violently beneath her. He grabbed at her legs, and flung his body side to side in an attempt to breach the surface even for a moment. “You gotta earn your breaths, little bro! Fighting isn’t gonna cut it!” Jackie said down to him, her arms tense and moving erratically as she held his constantly moving body beneath her.

As Vicky finally relented and allowed Ethan to breach the surface, he gasped the air in lavishly. His attention turned over to Scott, who still hadn’t had one breath of air. “You need to let him breathe!” he shouted, quickly silenced by Vicky as she wrapped her hand over his face and dragged him away from the battling siblings.

Scott could feel his consciousness fading as his energy lessened with each passing moment. As his vision slowly faded to black and he finally stopped resisting, the last thing he saw was the blurred and distorted image of Jackie grinning back at him through the water.