Dipper looks nervously at his surroundings. The trees around him are oppressively tall and heavy, and the flashlight he had brought with him didn't do much to brighten the muted light of the early twilight. He readjusts his cap and focuses on his goal: find Wendy, find out what's wrong, fix it, go back to normal. He sighs, the trail is only barely visible beneath his feet. He can only hope that he'll reach the cabin Wendy's supposedly staying in before sundown really hits him. He continues to walk down the trail, and he re-plays the events of the past few days in his mind. Showing up to Gravity Falls, ecstatic for another summer. Finding out from Soos that Wendy had 'like, become a total social outcast or something'. Tracking down her friends and family to find out what happened. Barely getting any usable information out of them. Finally finding out where she had hermited herself away to for the last two months. Convincing Mabel to let him go after her alone. Leaving the Mystery Shack alone at 5:00 AM. Making the grueling trek from Gravity Falls through the forest to where her cabin supposedly is. Bumping into the front door and hurting himself because he had spaced out and hadn't realized that the trail he was following lead to it. Wait, wha-?

"Ah!"

He yells out in a mixture of pain and surprise. His butt lands on the ground half a second later and he looks up to see the small wooden cabin he had bumped into the wall of. He pushes himself up off the ground and dusts himself off. Somehow, he had bumped into it without noticing thanks to how deep he was in thought. The cabin is small, one story and looks like it could only contain one or two rooms inside. Dipper walks around to the side of the building, glancing up and down for the door. He passes by a window, and can see that the curtains are drawn shut, and if there are any lights inside then they're very dim. Dipper finally walks to where the door is, and he gives the rough sheet of ply a knock. He waits for a moment, before a shaky voice emerges from behind the door.

"D-Dad?"

The voice is distinctly Wendy's, but it's slightly deeper pitched, and it sounds much less confident than what Dipper is used to from Wendy. He prepares to respond when she cuts him off by speaking up again.

"Aren't you a little early? It seems like you brought my supplies just yesterday... Oh God, has it already been a week?"

Her voice picks up a hint of panic during that last sentence, and Dipper quickly silences her fears.

"N-No. Wendy, this is Dipper. I came here to check on you. I got back from Piedmont last Thursday, I wanted to talk to you."

"...Dipper?"

"Yeah?"

"Please leave."

Dipper stutters and steps back from the door.

"Wha-what?"

 "Please leave."

"I. W-Wendy. I just want to talk, what's been going on? Why have you been alone in this cabin for the last few months?"

"..."

"Wendy?"

Dipper backs away from the door a little, concerned by the sound of crying from the other side of the thick plywood sheet.

"Wendy-I- Please, I just want to talk."

Her response is intertwined with the occasional sniffle.

"No you don't. Nobody wants to see me now."

"Please Wendy, just open the door, I'm sure I can help with whatever's wrong."

He hears the loud, metallic sound of the door opening and slowly it creaks open. Wendy's face appears on the other side, her body still hidden from sight. She looks leaner than she did last summer, and her face is covered with dark spots, almost as if her dusting of freckles had grown in size, gotten darker, and had spaced themselves out. Despite being paler than before, her skin also looks significantly thicker than it did last summer, and her eyes look bigger, more rounded, with giant pupils. She looks Dipper up and down, and smiles weakly.

"You're looking well, can't say the same about myself."

She chuckles slightly at her statement, and Dipper just blankly looks her up and down.

"Wendy, what happened? Why have you been here alone for the past few months?"

She sighs and opens the door a little, inviting him in.

"Come in, there's a lot to tell you."

Her body is still hidden behind the door, and as Dipper enters the dark cabin his eyes struggle to adjust to the low-light. The floor underneath his sneakers is dirt with a covering of straw, and he can tell now that the cabin was constructed extremely hastily, almost more like a barn than anything, and the thick plywood walls do little to stop the coolness of the early-summer evening from seeping in. After stepping in Dipper turns to face Wendy, who's wearing a very baggy hoodie and Dipper's old pine hat. She looks tired, and extremely stressed out. She's also slightly taller than Dipper remembered her, but that could easily be age. Dipper is taller too, almost up to Wendy's shoulder, and his hair is slightly shorter than it had been last summer, although it is held back by Dipper's old cap. She rubs her arm and appears nervous, obviously uncomfortable with Dipper being there. Her chest had filled out considerably, but Dipper averts his eyes when he realizes they had lingered a little too long.

"So... What's up with all this? Why have you been hiding away?"

Wendy sighs.

"I was hoping you wouldn't find me out here, but I suppose I do owe you an answer. Promise me one thing though, once I tell you, you have to leave and never come back, okay?"

Dipper stares at her a moment before shaking his head.

"You know I can't agree to that, Wendy."

He takes Wendy's old Ushanka off his head, revealing his curly brown locks. He holds it in his hand and extends it to her.

"Come on, trade?"

She hesitates for a moment, before slowly removing Dipper's old baseball cap from her head. She brings it down and holds it in font of her. Her hand moves back up to her head and she parts some of her hair before rubbing one of the two small, bony nubs on her scalp.

"This is why I left."

Dipper stares at her head, eyebrow raised.

"What are those? They're barely noticeable, why'd you leave if it's just that?"

She lets out an exasperated chuckle and motions to a small cot that had been set up in the corner of the single-room cabin. In the center of the room is a table with stools around it, and against one of the walls is a series of cabinets, counters, and a small wooden stove. Dipper obliges and sits down on the side of the bed. Wendy sits down next to him and begins to explain.

"It all started about three months ago. One day after school I was hanging out with some friends in the woods. Of course Thompson brought beef jerky with him."

She sighs and hangs her head. Dipper tries to cheer her up by offering her old Ushanka. She accepts it with a weak smile and puts it on her head, covering the nubs.

"Sorry, it's just kinda hard to remember what comes next. Thompson's beef jerky attracted one of those things, a Manotaur."

"Really? I thought they didn't appear to groups with women in them."

"They don't, this one made an exception. Everyone scattered after we heard him coming, but I guess for some reason he took an interest in me... He started chasing me, and I ran as fast as I could, but it didn't work. He was too fast."

Dipper nods, Wendy's composure is breaking, and he has no idea where her story will go next.

"S-So, he caught up to me. A-And he picked me up and..."

Suddenly, she bursts into tears. Dipper is stunned, she had never shown much hint of a negative emotion to him before, and she had certainly never cried. Her face is contorted in pain from the memory, and Dipper lays a hand on her back.

"It's fine, you don't have to tell me if you don't want to."

"N-No. I should. He picked me up and... How do I put this lightly Dipper, he raped me. It lasted for about two hours, and by the end I couldn't even stand. He left me in the forest and I couldn't do anything until I woke up the next morning, with severe hypothermia. I crawled to the road, somebody picked me up and took me to the hospital. I was admitted for more than a month, he had broken my pelvis, both my legs, and cracked three ribs. What's worse is what happened after."

She anxiously pulls off her hat again, rubbing her horns.

"I started developing these."

Her hand moves down from the nub to her ears, which are much more angular now, and covered with reddish hair.

"And if you hadn't noticed, my skin is thicker now, and the rest of my body... Well, there's a reason I'm wearing a hoody and sweatpants."

Dipper looks down, ashamed.

"Wendy, I'm sorry to hear all this."

"Don't be, it's not your fault, all I ask is to be left in peace. Maybe all this stuff will go away, or maybe it'll keep getting worse. I don't know, either way I just want to be left alone."

She sighs apathetically, and Dipper gets off the bed, puffing up his chest.

"No way! I'm gonna find a way to fix this! Then, we're going to go to those manotaurs and give them a piece of our minds!"

He punches his hand emphatically. Wendy sighs again.

"Look, Dipper, I don't want trouble, I just want to be left alone to deal with this. Is that too much to ask?"

"Yeah, it is! I'm not going to let them get away with this!"

Wendy pinches the bridge of her nose.

"Please, just drop it. I'll be fine here on my own. The last thing I want to do is to see another manotaur."

Dipper shakes his head.

"No way. Come on, let's go back to the Mystery Shack together, I'm sure Ford can help us find some way to fix this, then we can go get some revenge on those manotaurs."

Wendy sighs begrudgingly.

"Fine, I'll go with you, but..."

She motions to one of the makeshift windows.

"It's nearly nighttime, like I said, you shouldn't have come here. We'll have to spend the night here and set out in the morning."

Dipper frowns, would anyone worry that he was away for the night? Probably not, they just have to set out early tomorrow. He nods in agreement. Wendy throws her Ushanka off and lets her ears settle.

"That thing's pretty uncomfortable with these, you know."

She wiggles her ears and Dipper grins a little.

"That's actually pretty cool. What else can you do?"

"Well... I haven't  shown anyone else yet but..."

She gets up off the bed. Dipper blushes when she reaches a hand into the back of her pants. She pulls it out a moment later with a long, cowlike tail in tow. It's about three feet long, and she can seemingly move it at will. On the end is a red tuft of hair, and she waves it around a little.

"Not sure if I hate this or not yet, it makes sitting down uncomfortable, but it is pretty sweet for picking up stuff behind me."

"Anything else you're hiding?"

Wendy blushes suddenly.

"Well, yeah... But it's kinda personal."

"What do you mean?"

She glances up at a clock on the wall. 7:40 PM, almost time for 'that'.

"I guess I should tell you... Since you're going to have to see soon enough anyways."

Her hands slip down to the hem of her hoodie and she hooks her fingers around it. She lifts her arms up and pulls the hoodie off, revealing a thin white t-shirt. Dipper stare and his mouth goes slightly agape, he hadn't noticed it under the hoodie, but she is very well endowed. His eyes widen as he realizes that she's not only got a set of tits that he doesn't even know if they make bras in that cup-size, but underneath it is another pair of only slightly smaller boobs. What really strikes his attention though is the big wet spot in the center of each. Wendy notices his embarrassed look and chuckles.

"Soak 'em in. I had to get used to them a while ago."

Dipper blushes and averts his eyes awkwardly. He can only imagine what kind of pain they must be causing her, physically and emotionally, but... They are kinda hot. He pushes those thoughts out of his mind and speaks up.

"I-I'm sorry Wendy. I'm sorry all of this has been happening to you."

She waves her hand dismissively and makes a pssh sound.

"Don't be dude, it's not your fault at all."

She gives a warm smile and glances up the clock nervously.

"But you want to know how you could help?"

He nods. Anything to help Wendy! She brings her hand up to the back of her neck and rubs it nervously, her hair slightly getting in the way in the process.

"Well, it's kinda embarrassing, and kinda gross too."

She admits, blushing.

"Nothing would be gross if it's to help you!"

He says, rather loudly and emphatically. Wendy just blushes a deeper shade of crimson.

"Like I said, it's pretty embarrassing. Are you sure you want to help?"

He crosses his arms and nods, only more determined now. She sighs and begins to explain.

"Well, ever since all... This started happening these..."

She cups her hands and brings them to her chest. Her hands cup her breasts and she hefts them up a little, eliciting a blush from Dipper.

"Haven't just gotten bigger. They're leaking too."

She lets out a small shudder and removes her hands. They sag back down a little.

"Wh-what do you want me to help you with then?"

"I'm getting to that. Ever since it happened they've been leaking like crazy, but it seems like the leaking isn't enough to get rid of whatever's happening in there, doctor said that they're producing so much milk there's a buildup..."

Dipper nervously glances around the room. Fuck, is he getting hard?

"...That means that twice a day I kinda have to... 'Release the pressure', or it gets pretty sensitive and painful."

Wendy stares at the ground, too embarrassed to look anywhere near Dipper's face. Her cheeks are still a deep shade of crimson.

"So... What do you want me to do?"

"I-I... I want you to help milk me, Dipper."

"Why?"

She looks down, still blushing. Would it be too much to say she wants to feel his hands on her body, to have him fawn over her and service her most important need? Probably. So she lies.

"It's kind of hard to reach..."

Dipper nods nervously, it's not like he'll refuse her offer of letting him grope those beautiful, round, huge- Snap out of it Dipper! He mentally yells at himself, mad for letting his mind wander.

"O-Okay..."

She glances up at the clock.

"It's nearly eight, that's usually when I do it, would you like to do it now or...?"

Dipper blushes and finally looks up at Wendy.

"I guess we should get it out of the way now..."

She nods and lifts up her shirt. Both of their blushes deepen when first her pale stomach skin, and then her soft breasts are exposed to the cool evening air. Her breasts are even larger than Dipper imagined they would be under her shirt, and if either of them thought he had an erection earlier then they certainly couldn't deny it now. Her top two breasts would easily stretch the limits of even the biggest bras you could find in a store, and the bottom two are at least DD-Cups. On her belly is a large, raised, discolored pinkish patch of skin. It has four small nubs located in a squarish pattern. Dipper glances at it, but before he can ask anything Wendy answers him.

"Yeah, that's the next thing. It's been growing for the past month, it hasn't been leaking milk yet but... I'm afraid I think it's an udder."

Dipper nods, then chuckles a little. Wendy raises an auburn eyebrow in response.

'What's so funny?"

"It's just, last summer I was always hoping I would get to see you shirtless someday, but I guess that I wasn't expecting it to be under these conditions."

She joins in on his weak laughter and playfully punches his arm.

"What? Don't like it? I can cover back up if you'd like."

"N-No, I didn't mean it like that. It's just, I didn't expect you to have, you know. An udder."

She tries to keep up a smile, although in her mind fears race that he's repulsed by it. Damn, when did Dipper become so cute? She asks herself before snapping herself out of that line of though. No! Get a grip on it Wendy! He's only 13! Just because he's so much taller and... More handsome and... More muscular... No! Keep it together!. Dippers's thoughts about her new addition couldn't be further from what she thinks they are. Her tits are huge! I-Is that milk dribbling from them?! He mentally slaps himself. Come on Dipper, you can do this. Don't screw this up.

"So... Should I start?"

"Yeah."

Wendy nods and scoots over on the bed. Dipper sits down next to her gently lays a hand on her right breast. His mouth is slightly agape, and he can feel a bit of drool collecting. He quickly closes his mouth, determined not to look creepy or awkward. Slowly, he gives her breast a light squeeze, and he jumps a little when a small burst of milk shoots out of her. She bites her lip and drapes her arm over the boy.

"That feels great, Dip. Just like that~"

Emboldened by her words, Dipper moves his hand further down her breast. He slips her nipple in between his thumb and index finger. He squeezes gently and a slow, steady stream of water begins to drip out of her soft pink nipple. Her slowly increases the pressure, and the dribble of water increases with it. Wendy softly coos, placing the back of her hand on his head and gently running it through his hair.

"Y-You know Dipper... You can try a taste if you want..."

Her cheeks turn an even deeper shade of crimson. Am I seriously asking Dipper to drink it!? The more rational part of her mind cries out for her to stop, but she can't muster the willpower to actually say the words. Dipper nods, dipping his head down onto her tit. He cups his mouth around her large pink nipple, and careful to avoid using his teeth, gently begins suckling her leaking breast.

It tastes... It tastes better than anything he had ever tasted. If Dipper tried to explain it to someone he would struggle to. It's like a mixture of warm milk, but with something... Something strange in it. It warms his belly when it slides down his throat, and it feels like the kind of drink to put hair on the chest of anyone. In fact... Wait! What!?

He yelps and pulls away from Wendy's boob. She blinks at him quizzically before he throws off his shirt in a panic. After he does so she stares at his chest with the same mixture of panic and strange curiosity as he does.

"My chest!"

There, on his chest, is a thick patch of short reddish-brown hair.

"D-Dipper! That's not it..."

Wendy yells panickedly.

"It's leaking Dipper!"

Dipper looks up and blinks. Her small udder had grown a noticeable amount during their short nursing session, and Dipper can see pools of white liquid at the tips of each small nub, or... Nipple? He isn't quite sure of the terminology, but that sounds about right. Wendy glances back up at Dipper. Her new udder development is still the first issue on her mind but... Had he gotten more muscular? She mentally slaps herself again, focusing on her new udder.

"F-Fuck..."

She groans and lays a hand on it, giving one of the four nipples a squeeze. Milk spurts out at an even greater pressure than it did her tits.

"Dipper, help me! It feels like it hasn't been milked in a month! It's going to explode!"

She isn't lying. The longest she had ever gone without milking herself was a week, and that felt like hell. Like needing to pee but being unable to, but worse. Dipper recognizes the urgency of her yell and lays his hands on her sensitive udder, determined to figure out what's happening after he helps Wendy. He tugs her nipples softly and more water shoots out, almost like a high-pressure hose of milk. She moans in relief as he tugs more and more harshly, letting as much milk out as he can without pulling so hard as to hurt her. The milk falls down to the straw floor beneath the two of them, and Dipper can't help but think it's being just a little wasted. I mean, it could hurt to just have another little taste, right? He nods, agreeing with himself. He gets off the bed and turns to face Wendy before kneeling down and gently putting his lips around one of her large, pink nipples. He sucks as softly as he can, but the pressure still causes it to shoot out into his mouth. Wendy sighs in further relief as his fingers move back to continue their magic. Milk sprays all over his bare chest and quickly growing red hair. He ignores it though as Wendy runs her hand through his hair again, softly moaning.

"Oh yeah Dipper~ J-Just keep that up~"

He grins as the warm whiskey-like taste returns to his mouth. He can feel his body shift a little, but he pays it no mind as he's too preoccupied with pleasing Wendy and enjoying the taste of her warm milk. Wendy stares wildly off into the distance of the opposite wall, mouth agape in relief and pressure as she feels her udder drained. It's an absolutely orgasmic feeling for her, and her jeans to start growing a little damp from something other than milk. She glances down briefly from her pleasure high, and is alarmed by what she sees. Dipper is growing under her. He's too busy servicing her to notice, but she can tell he's getting bigger. His chest is widening, and he's already easily gained an inch or two. Additionally, as she continues to rub his hair she feels the telltale nubs of future horns growing under her fingertips. Should I stop him!? He's too into it to notice himself and I really should, but... She lets out another groan and bites her lip in pleasure. It does feel good..