Exactly as she is

The sight of Sarah lazily lay on your bed with her feet playfully moving through the air, was a sight that wouldn’t have been erotic only a few days ago. You weren't really a ‘feet’ kinda person but the idea of them wrapped around your dick was not an unpleasant thought.

“Stay right there, I have an idea,” You told her before turning to search through your desk drawer and after a bit of routing around you finally found what you were looking for. At some point, you had bought some lotion to see if the difference in feeling was really all that it was cracked up to be. In your opinion, there wasn't really much of a difference in terms of pleasure but you still kept it handy when you had wanted a change.

Before turning around to go back to Sarah you were hit with another wave of inspiration and fished the phone out of your pocket before navigating to Sarah’s profile on the KDK. You saw the notifications pop up to inform you about various subjects' level ups but in the heat of the moment, you ignored them to get to your goal.

Activating ‘Underwear Delivery’

You turned around to see Sarah shimmy out of her underwear and hold them out on the end of her finger for you to take as if it was the most normal thing in the world. Luckily you were about an hour past the 12-hour cooldown for this active effect so it was unlikely you would get to use it tomorrow but her level 2 should be available by then so you weren't too fussed about it.

You knelt behind Sarah and removed her socks and placed them next to her now discarded panties before starting to apply lotion on her skin. Sarah squirmed a bit at the contact but otherwise didn't say anything to stop you. With her feet now lubed up and a perfect view of her bare ass and pussy, you unzipped your jeans and lowered them before shuffling closer to place your hardening dick against the bottom of her feet. You took a few strokes to test the feeling before deciding it was best for you to hold her ankles to grip yourself. A sudden rush assaulted you now that you were basically using your sister like a doll as her feet slid up and down your shaft in perfect rhythm.

You carried on using her feet for a few moments revelling in the pleasure before Sarah interrupted your thoughts.

“Want me to give it a go myself?” Sarah casually asked, flexing her toes against your dick. You were perfectly content to carry on using her feet but the added thought of her willingly pleasuring you sent a tingle down your spine.

“...Why? Last time you made it pretty clear you wanted it over and down with, as soon as possible. What's changed now?” you queried, slowing down your thrusts so that you could still talk without losing focus.

“Last time you woke me up at the crack of dawn so of course I wanted to go back to bed quickly. But other than that it's actually pretty exciting feeling you against my feet like that” Sarah admitted.

“Exciting how?”

“Well, I'm not sure if exciting is the best word. More like… it just feels right, you know?” Sarah asked while casually rubbing the head of your shaft against her toes.

“This feels pretty right to me” you responded, leaning your head back in pleasures as she massaged the tip.

“Sweet! You mind if I turn over? I think I can do a better job if I do it this way”

“Be my guest” you offhandedly answered.

Sarah stopped what she was doing with her feet and flipped herself onto her back. She got into position a little closer towards you bent her legs so that the soles of her feet were pressed against the sides of your dick.

“See doesn't that feel better?” She asked while keeping your dick trapped as she softly moved up and down to the base of your shaft.

Although Sarah asked you a question, your sight was drawn away from her face to her now nude lower half. You thought you had a good view before when you could see her ass peeking out from under her skirt, but with the way her legs were bent to help take care of you, there was no way for her to hide her perfect pussy from your view. This was one of the moments that you hoped the KDK would snap a picture of, just to look back and know it wasn't a dream.

“At least someone agrees with me” Said Sarah as your dick jolted to the erotic sight before you. Eventually, Sarah seemed to notice your stare and directed her line of sight to where you were looking before looking back at you with a slight blush.

“You really are a pervert you know that”

“What? Where do you expect me to look when you're laid out like that. To be honest, It's kinda hard not to stare when you look so good with your legs up like that” you admitted.

“You really think I look good?” she shyly asked, seemingly happy to receive the complement.

“It's a lot better than good. I’d have to either be dumb or blind to not find you attractive” you replied, complimenting her further. You weren't sure if you had gone too far at first as Sarah sat there in silence but the way she increased the intensity of her footjob made you quickly dismiss that idea.

The new speed at which she was stroking you was getting you closer and closer to the edge. You tried to hold on as long as possible to prolong the sensations Sarah was causing but she seemed to realise your predicament and quickly sat up to replace her feet with her much more dexterous hands. The pleasure was finally too much to bear and although you wanted to warn Sarah, you were too far gone to say anything coherent. You let out a long groan as you shot the first of your load almost straight up into the air before it landed on one of Sarah’s bare thighs. Although surprised Sarah was able to grab her socks and panties that she had taken off previously and tried to redirect your load into her clothes to avoid any further spills.

Although she was able to get most of your climax contained in her now soiled clothes, she seemed to underestimate how much cum you were going to produce as her hands and fingers were now dripping your remaining load onto her already covered thighs. She tried to wipe her hands clean on the remaining dry areas of the underwear but with nothing else left to use she ended up spreading the rest onto her arms and legs.

“If I’d known you could shoot like a gallon of this stuff I would have been more prepared. You didn't have this much in you last time I gave you a hand” Sarah joked as she continued to rub your cum onto her skin in an attempt to get herself clean.

“Well... you got me a lot more excited this time” you replied while still trying to catch your breath. That climax had knocked more out of you than you had thought but you couldn't help stare at your sister whose arms and legs were now completely covered. You both caught your breath for a few seconds as the excitement of the encounter started to wear off and although keeping your sister drenched in your cum sounded like an amazing idea, you knew Mom and Lucy would get suspicious if they saw her. You went over to your desk to grab some tissues you had stored before attempting to wipe her thighs clean while Sarah focused on her hands and arms.

As you had almost finished wiping you looked down to see a small wet patch between her legs and decided to push Sarah to do one last thing.

“As you said that it felt ‘right’ to be used by me I’ve got a proposal for you” you announced. Sarah turned to look at you but continued to try and clean her off hands.

“Oh here we go again” she muttered.

“Well, considering I can use your legs however I want, I want you to put ‘those’ back on,” you said while gesturing to the pile.

Sarah looked at the collection of now cum covered underwear before picking up the panties and examining them.

“I’m fine with the socks but these are a no-go,” Sarah said refusing to wear her underwear.

“Who said anything about your underwear, I only meant the socks. You must be really perverted if you thought I'd make you wear them” you mockingly replied, using her own words against her. After that little test, at least you knew where she drew the line. Hopefully, that restriction would end once her level 2 was activated.

Sarah blushed at your response and began putting on her socks before hopping off the bed and taking a few cautionary steps. You could tell from her expression that it wasn't a pleasant feeling for her but she didn't put forward any complaints.

“Right unless you still need me, I really wanna take a shower. I feel all sticky thanks to a certain someone” Sarah smirked.

You got up and unlocked the door for her. It felt a bit sudden for her to leave but you weren't gonna keep her any longer than she wanted to be here. You could **** her to stay and wait to get hard again due to the KDK’s effect but you still wanted to at least attempt to be a good brother with your newfound power.

She left the room and you ruffled her hair as she passed, much to her annoyance but the small smile on her face gave away her true feeling to the contact. She was about to happily take a few steps towards the bathroom before she remembered the condition of her socks and **** herself to slow down a little. Luckily with Mom having an on-suite, Sarah could jump in the shower as soon as.

You closed your door once Sarah was out of sight and sat at your desk before pulling up the KDK again to view the notifications you had missed.