Emily wakes up to a world where her brother's in charge

That's how Emily found them, when she awoke two hours later. Eyes bleary, she got up to go to the bathroom... Only to gasp as she remembered where she was, what had happened, and where the annoying thud, thud, thud sound was coming from.

She stared in horror at her brother, who was rutting between their mother's thick thighs. She was spared the sight of the swinging, bloated testicles that were slapping against the woman, but only because their father's head was in the way. He was licking his way up and down Jimmy's balls, and even flicking the boy's asshole with his tongue every few strokes.

As Emily took a step back, Francis lifted his head in surprise. His face was covered with his son's seed and his wife's juices; even as Emily watched, there was more spurting out from the site of their frantic coupling.

The older man's erection was still poking out of his boxers, caked with jizz and dripping with pre-cum. Emily couldn't tell if the creamy white trail oozing its way down the sheets at the foot of the bed was her father's ejaculate, her brother's, or both... But judging by the volume, the latter option seemed the most likely.

Francis stared at his daughter for a few moments, before Jimmy let out a primal growl. Reaching back, the newly-minted Alpha grabbed his father's head and **** it back between his legs.

"Mgh... Keep... Lick," he grunted. "Gon--Gonna nut--Ungh!"

"YesyesyesyesYEEES!" Audrey's scream filled the hotel room, and her legs flailed as she was caught in the throes of her own orgasm. A wayward foot slammed into her husband's head, but not hard enough to stop him from cradling his son's testicles and keeping them stimulated as they filled Audrey up for the twentieth time.

Emily gulped as her eyes moved along the bed, to her mother's waist. Audrey was massaging her stomach, which was visibly bulging with her son's loads... Or maybe she was just arching her back, in order to allow his artificially-enhanced member to thrust as deeply as possible. Either way, her hands caressed the bulge like those of a pregnant mother.

As the girl looked even further up the bed, she moved past her huge, heaving breasts to lock eyes with Audrey.

"Em... Emily," she gasped, slowly coming down from her orgasm. There was a conflicted look on her face, and she brushed some of her disheveled hair aside. "Sweetie, I... This is, um..."

"Ohmigod," Emily gasped, scurrying off to the bathroom. She slammed the door behind her, pulling out her phone. This place is crazy... My whole fucking family's gone crazy... Jesus. My friends aren't gonna believe this.

Between her usual morning routine and texting her friends, Emily was in the bathroom for half an hour. The bed continued thumping against the wall the entire time, save for a 30-second break while Francis fetched his son another bottle of Spermizan (and argued briefly about whether taking more was a good idea, before both Jimmy and Audrey shouted him down).

Jimmy's moans were getting more and more guttural, as the constant drip of libido-enhancing **** turned his mind to mush. Francis was getting worried: between licks of his son's distended ballsack, he made time to glance at the warning labels on the Spermizan bottle.

"Effects are fully reversible..." Well, thank God for that. I don't want a horny half-wit animal for a son when all this is over, he thought. After spitting another mouthful of lube onto the thick rod sliding in and out of his wife's pussy, he stole another look at the bottle. "...May cause hyperfertility, regardless of hormonal birth control use..." Wait, what?

"Audrey, we--Mph..." Francis took a moment to wipe the drool and jizz from his mouth before continuing. "Audrey... Audrey!"

Slowly, his wife's head squirmed out from behind Jimmy's flexing, bobbing shoulders. "...Mmm... Huh?"

"We have to stop... Make him pull out! The label on these **** says you could get pregnant!"

"I... N-no, I don't think--Mmm..." Before Audrey could stumble through her reply, her son cut her off with a deep kiss.

Francis never learned whether Audrey didn't believe him, or simply didn't care. Either way, her legs remained locked around Jimmy's waist as he pumped yet another load deep inside her.

Trembling like a leaf, Francis backed away from the bed. It was then that he noticed his daughter, spying on the three of them through the cracked bathroom door.

Emily had her phone out, and was filming the mother/son action with a look of disgust on her face. When she saw her father, she quickly tucked it away and slammed the door.

"Here you go pervs," she texted her friends' group chat, along with the video. "I told you, they're like animals. This town is SO FUCKING WEIRD."

"Jeeeez, you werent kidding. was that cum on your dad's face? eeeew"

"Okay but like what happens when you leave? Isn't your brother gona be grounded for the rest of his life?"

"Lol too late for that. You'll all be SCARRED for the rest of your lives"

"Kinda hot tho... Send more :P"

Leaning back against the bathroom door, Emily took a few deep breaths. She knew she couldn't hide in there forever, but she needed to come up with a plan if she was going to survive this "vacation."

Should I try to stay in the background, and let him work out... Whatever this is... On Mom and Dad? Or do I lean into it, do whatever he wants, and act like I enjoy it? Jesus, I wish I'd treated him better all these years... The moment he gets bored of abusing our parents, I'm toast.

Then, suddenly, the thumping against the wall stopped. For the first time since she woke up, Emily couldn't hear her mother getting mounted and stuffed.

Breathing a sigh of relief, she opened the door.