Sunday Funday

You wake up on Sunday morning, heading downstairs to see Emma and Sophia already eating some cereal at the table. Your mother is in the other room, wearing an oversized hoodie with seemingly absolutely nothing else.

Emma's huge tits are peeking over the top of her low-cut shirt, and you see them jiggle with each movement she makes.

You take a closer look to see if the condition you created is working yet. You don't seem to see anything strange just yet, so you turn your attention to Sophia.

You can't properly see her ass since she's sitting in a chair, but she's wearing a black sports bra, which hugs her small breasts nicely, showing off the small amount of cleavage she has.

"Good morning, girls," you say to them, showing your high spirits and announcing your presence to them.

Sophia glances up from her phone and smirks at you, "About time, John. We really thought you had died in your sleep or something."

Emma responds with a giggle at Sophia's comment and waves good morning, her mouth full of cereal.

You chuckle at Sophia's playful jab and take a seat at the table, pouring yourself a cup of orange juice. "I'm alive and well, just needed my beauty sleep," you reply with a grin, joining in on the morning banter with your siblings.

Since it's Sunday, you really don't have much to do, and not much you're motivated enough to do with the measurement app. Your brain feels like it's fried with all the ideas you've been cooking up for possible conditions for other people at school, so you decide to take it easier today and just chill, go with the flow even.

However, your relaxing train of thought is suddenly broken by Sophia getting up to put her plate away, and you notice a notification on your phone. For once, it isn't from the Measurement App, it's a text from Sophia. You glance at her quickly, puzzled as to why she couldn't just ask you herself, but then you read the message.

"Wanna indulge in some late-night activities tonight?"

You grin slightly, aware of the fact that your sister's genius-level intellect came at the cost of her somewhat limited social skills. Throughout her life, she learned how to act and is a relatively popular girl, but at her basis, when she's outside her comfort zone, things end up sounding like this.

You react with a thumbs-up emoji, noting that activity for your bedtime.

Suddenly, Emma makes a small squeaking sound, covering her breasts and running away rather quickly. Your heart races as you realize that the condition has activated. The new circumstance you placed on her is rather powerful. Her breasts now produce milk at a very minimal level. She only noticed since she wasn't wearing a bra, and you were able to see small liquid stains forming where her nipples would be beneath her shirt.

However, simple milk production isn't the only part of Emma's new condition. She currently produces a small amount of milk, and every time she lactates like this, she will have a strong desire for cum. If cum is absorbed into the body during this window, then her breasts will produce more milk when they lactate the next time, and the effect of draining them is automatically activated when the cum is absorbed. Every time she drains her breast milk, Emma's already-large titties will grow, depending on the amount of milk she's producing.

Super complicated, right? Here's a summary; Emma's breasts lactate, and lactate more if her body gets cum. When Emma drains her tits, they grow, depending on the level of lactation. You decide to shorten this ability to "breast cum absorption" so a whole paragraph doesn't appear on the measurement app's stats.

You somehow worded it in a way for the system to recognize so many different conditions and put them together. However, this method of working around the system is extremely, painstakingly tedious, requiring you to proofread through the whole condition multiple times. Therefore, you're probably going to use the hybrid upgrade for any extremely complicated conditions in the future.

Anyways, what all this means is that Emma is going to be really horny, definitely thirsting for some cum right about now. She ran upstairs to her room, seemingly to drain her breasts. Due to your options, Emma's under the impression that she's been lactating for a while, since she's completely unaware of the fact that you just put the condition on her.

You head upstairs to peek in on Emma's room. Sure enough, she's sitting topless on her bed, squeezing her huge milky tits, allowing small droplets of milk to travel down her torso. Her face is very flushed, her breathing quickened as well, and you assume that this is the desire for cum, translated into direct horniness. Every time she squeezes her large breasts to milk them, a moan escapes her lips as the white liquid droplets roll down her body.

You quietly open the door, and walk in a few steps.

Then you clear your throat, announcing your presence to Emma, who jumps in surprise, quickly covering herself with a blanket. She looks embarrassed but also slightly excited at being caught in the act, which you note for future possibilities.

"You alright Emma? You seem kinda freaked out," you say, feigning ignorance to the situation so as to not expose your secret app, as well as allow Emma to view you as someone who could help her.

In response, Emma quickly composes herself, laughing nervously and insisting that she's fine.

You offer to help her with whatever she was doing, and her face flushes even further at the suggestion. Maybe due to her extremely high levels of horniness or maybe just her true feelings, she accepts your offer, slowly lowering the blanket around her big, milky assets.

You sit on the bed behind her, allowing her to lean back into you. You move your hands to her breasts, slowly and gently caressing them to stimulate the milk. Emma already drained most of the milk, so there's not a lot more leaking out of her hard nipples. You realize after a minute or so that you're going to need more stimulation. You flatten Emma on her back, and you begin to suck her nipples in order to extract the milk.

The milk flows into your mouth slowly and in small amounts, the warm liquid tasting slightly sweet and rich. As you continue to suckle, Emma's breathing becomes heavier, and her body relaxes further into your touch. At every lick and suck, she moans at the sensation of your tongue. Eventually, Emma pulls your mouth away from her lactating breasts and instead pulls your mouth into hers, your lips colliding in a passionate kiss. Your tongues intertwine with each other, exploring each other's lips. There is still an aftertaste of Emma's sweet milk in your saliva, and as you pull away from the intense kiss, a strand of that saliva hangs between you and Emma's tongues.

She hungrily stares at you, then at the tent in your pants caused by your extremely horny dick. The thick blonde girl pulls your bottoms off, and immediately gets to work with her mouth on your cock. You lay back, leaning your head against her bedframe as she lays to your left, working her tongue on your tip as perfectly as you did for her nipples.

As Emma's head bobs up and down your shaft, you can feel that your stamina truly has been increased by the condition you placed upon your own body. Not that it's a surprise that the app's reality-bending powers are real at this point. Emma looks up at you while taking half your dick in her throat, her tits bouncing as her head goes up and down.

The busty blonde girl pops your dick out of her mouth, and her saliva glistens on your shaft. She begins to stroke your dick, her eyes locked on yours as she whispers, "I want you to cum for me." You can't help but feel a surge of desire as you watch her expertly work your cock, knowing that she's about to take you to the edge of ecstasy.

With that, Emma puts your dick back in her mouth, her head moving back and forth with a feverish intensity now. Her tongue swirls around the head of your cock, adding another layer of stimulation to her amazing blowjob.

You can now feel the heat rising throughout your body, the peak of orgasm approaching quickly. As you roll your head back and moan in pleasure at Emma's lips around your cock, she moves her head back and focuses on only stimulating your head. It seems to be too much for your pent-up penis to handle, and you unleash a load in Emma's mouth, pulling her head down your shaft so she can gulp down all your seed.

As you pull your twitching cock out of your busty sister's mouth, she swallows all your cum with a couple gulps. With that, you sigh in ecstasy, satisfied at fulfilling the first step in making your sister into a milk factory. After she swallows the cum, you see her breasts grow slightly. You assume that you're only able to notice since your eyes have basically been developed to see growth with the measurement app's abilities.

You quickly put your dick away while Emma gets some water, not necessarily wanting your other condition to activate, which would captivate her mind and probably result in the blonde girl getting railed. Not really a bad thing, but considering that you want to see what else you can do with your mother and Sophia, it's best to avoid any excess actions. Plus, you still have a lot more steps to go before Emma becomes the milky maiden you envision. You pull out the app to see how things are progressing, using the expanded details just to check them out for Emma.

Emma Ring (Step-Sister)

• Height: 5’5”
• Breasts: Mid-F cup
• Waist: 32 inches
• Hips: 38 inches
• Thighs: 26 inches
• Nipples: Somewhat thick, medium-length, brown
• Pregnant: False
• Lactating: True

Conditions:

• Breast cum absorption

You nod at the results, excited to see the future expansion that you have planned for your busty sister. At that, you kiss Emma on the cheek, squeeze her titty once more, and head back downstairs to see what your mother and Sophia are up to. Your mother is leaving to the grocery store, and you decide you may as well go with her since there's nothing better to do. Sophia is reading a book on a chair in the living room, and she waves you away after you ask if she is interested in going to the store with you and your mother.

"Nah, that sounds pretty boring; I'm good." Sophia dismisses you, shooing you away with her hand while not even looking up from the book.

As you get your shoes on to head to the store, you take a glance at your mother. She's wearing a low-cut crop top shirt and a rather skimpy skirt. When she bends over to put her shoes on, you see that she has no panties on either, as you are blessed with the full view of her bare ass and pink slit. You can also see her nipples poking against the fabric of her low-cut shirt, signifying her total lack of underwear. As you both head out to the car, you begin to formulate some plans on spicing up the trip to the store in some way or another through the use of the all-powerful measurement app.