She betrays you

A minute or two passes. You hear faint voices within the house, both male and female. At first you’re nervous, but as time goes on you begin to relax; after all, if your father was inside the house, he’d be inside you by now.

You’re even more relieved when the door opens and Valerie returns, a smile on her face. Just as you’re about to thank her, she’s followed by her sister and their mother.

“Wow,” Natalie gasps, looking you up and down. She’s an incredibly-fit blonde girl a few years older than you, wearing a tank top and yoga pants. “You weren’t kidding, Val. He fucked her up good.”

“Sssh,” Clara says, glaring at her daughter. She's wearing an outfit that matches her daughter's, and although she's a few years older and in worse shape, it's still just as scandalous: her tank top is stretched by a huge pair of (probably fake) tits. “Don’t humiliate the poor thing any more than necessary... Let’s just do what we need to do, okay girls?”

Before you can react, Natalie and Valerie both pounce on you. They each take hold of an arm and pull you down onto the bed, ignoring your thrashing and confused cries.

“Okay, big guy,” Clara shouts. “Come on in.”

Your eyes go wide as the older woman steps aside to reveal your father. These people, these fellow women, allowed him into their home... And now they’re holding you down as he approaches, his huge, dripping erection bouncing with every step.

"H-hey there, Pumpkin," he grunts, stroking it a few times. "What were you thinking? I--You really need this medicine, okay?"

Without waiting for a reply, he kneels down at the foot of the mattress. The sisters grab your legs and spread them wide, not even looking at you; they're too busy staring hungrily at your father's cock. Valerie looks especially entranced, licking her lips as she watches him shimmy between your legs and press his swollen head against your pussy.

"We... We need to do this," he murmurs to himself as he pushes inside. While the first thrust is gentle, in a matter of seconds he's pounding you at full speed. "Fuck, I'm gonna fill you up so good--"

"Remember the deal," Clara says, kneeling beside your father. "The first three doses go to me and my girls, right?"

"Right, yeah," he grunts, placing his hands on your waist and helping to hold you down as he thrusts even faster. You try to plead with him, but he talks over you: "b-buh... Fuck... Better get your mouth down there. I'm getting close--Uuungh..."

Clara bends over, places her head on your stomach, and opens wide. You feel your father pump one jet of hot cum into your pussy before switching holes mid-orgasm. He makes a mess on the mother's cheek, but manages to slide between her lips before shooting the rest of his load.

That's when the full extent of your predicament sinks in: you were used and abused in Dad's office, chased down, restrained, now you're getting used again... And you aren't getting any medicine? What the fuck is your life... No, the world... Coming to, and how can you stop it?

"I'm next," Valerie says suddenly, shifting her grip on your arm. "I need it the most."

"I need it too," Natalie whines. "Why should you get special treatment? It's not my fault you're too fat to get donations!"

"Mmgh..." Their mother sits up, wiping her mouth and swallowing a few times. "...No fighting. There's plenty to go around."

You don't catch the rest of their conversation; you're too busy crying out in shock as your father pushes his still-hard cock back inside you. He really leans into it this time, and you come face-to-face as his hips meet yours.

“Pumpkin, I...” For the first time since this whole thing started, he meets your gaze. You can tell that something’s clicked within him; a pang of shame or regret, a realization—

“...I love this,” he groans, grabbing hold of your breasts and squeezing them roughly. “You’re s-so tight... Feels so good...”

“Dad, I—”

“Don’t be embarassed, Pumpkin,” he continues, still rutting on top of you. “These ladies are just here so I can ruh... Reward them for... Ungh... Helping me find you.” He pauses, looking up from your dumbstruck face. “Uh, girls? Need another mouth soon.”

Valerie obliges, scrambling down your body and around your father to the bottom edge of the mattress. When he doesn’t immediately pull out, she sticks her head beneath and starts licking his unusually-swollen balls.

With her out of the picture, your left arm is free. You reach out blindly, trying to find leverage or push away your attackers, but in a split-second your father grabs you by the wrist and pins you down even harder.

Between that act of raw dominance and the sensation of the chubby teen lapping his nutsack, your father can’t hold on any more. Again he pulls out while firing off a huge load, and Valerie manages to catch most of it on her tongue. He dips inside her mouth a few times, whispering your name as he thrusts just a little too far into her throat.

“Hurgh! Sh-shtop, I—Guuugh!”

“Yeees, Sarah... Take it,” he moans, closing his eyes and squeezing your tits even harder as he facefucks the girl.

“Mmph!”

Noticing her daughter’s gagging and ****, Clara taps your father on the shoulder. “You can stop now.” When he keeps up the savage deepthroating, she raises her voice. “You... You can go back to fucking your daughter!”

“Huh? Mm, yeah,” he mumbles, going straight from Valerie’s battered throat to your equally-weary pussy without missing a beat. Your neighbor rolls off the mattress and collapses on the floor, coughing up some of the medicine that she didn't manage to swallow.

"Are you okay, Val?" Clara looks concerned as she checks on her daughter. "Here, let me help you. We can't waste any..." With that she licks her way up Valerie's chest, slurping cum off her breasts before moving on to her neck and chin.

"Ah... Th-that's mine," the chubby girl whines, squirming away from her mother's tongue. Clara ignores her, swallowing down whatever cum she can reach.

"Um, guys?" Natalie watches nervously as her mother and sister wrestle over the remnants of your father's load. "It's gonna be my turn soon. Come hold her, please?"

Unfortunately, neither of them hear her. Valerie is pulling her mother into the least romantic kiss you've ever seen, trying to suck some of the stolen dose from her lips. They're getting more and more competitive over the last few globs of cum, and aren't paying any attention to the three of you still on the mattress.

"P-Pumpkin," your father growls, driving balls-deep into you. "It feels so... So good... I'm gonna cum--Guh... Give you a dose..."

"Are you kidding?" You finally manage to put some words together. "You're not giving me anything, Dad! You're just fucking me!"

"That's--I--" He pauses, looking conflicted... But his hips are still moving. "...I don't..."

"You can't stop now," Natalie cuts in, running a hand down your father's back until it reaches his ass. She gives it a little spank, then a squeeze, then tries to push him even deeper inside you. "It's my turn... You need to make some medicine for me, okay? Lots of medicine."

"Yeah... Yeah. I'm just helping," your father says under his breath, thrusting faster and faster. "Just helping... Oh, fuuuck... Pumpkin..."

With that he tenses up, and you feel his hot cum spurting inside you. He doesn't stop fucking you as he blows, still rutting at full speed while his balls empty. Natalie doesn't notice until it's far too late; your father's cum is overflowing from your pussy, a little more pushed out by every savage thrust.

"Seriously?" The fit young woman finally lets go of your arm. "That's my dose! Move, dammit!"

She gives your father a few shoves, and after one final pump he reluctantly pulls out. Natalie immediately dives between your legs, catching the spilling cum with her mouth. A chill runs up your spine as her tongue dives deeper, probing and flicking as she searches for more of the precious medicine.

"S-stop," you gasp, trying and failing to sit up; your arms, legs, hips, and pussy are all sore, and the full-body tingles Natalie's giving you aren't helping. "I need to go now."

"Why?" The reply comes from Valerie, who's been licked clean. She pushes away her mother before continuing. "Looks like he's spent now, anyway."

"F-fuh... For now, yeah." You look nervously at your father, who's leaning back and panting with his eyes closed. "I don't know how much Zanalfil he took, or how long that stuff lasts. He might recover."

"God, I hope so," Clara chimes in, licking her lips. "I haven't been able to drink that much medicine in ages. We're all gonna be so smart!"

"Well I'm not," you snap back, pushing her daughter away from your pussy. Natalie glares at you, and you glare right back; after a moment she backs down, leaving you alone on the mattress.