Since moving in with the Blanchers Isabella had had little to no contact with them, choosing to stay in her room whenever possible. Their family vacation to Hawaii was the first time she was going to be forced to actually spend time with them. Luckily Isabella sat by herself on the plane as the seats the family booked were not grouped together. Once they arrived at the hotel, she received her own room while the Blancher boys, Andy and Alex shared and room and the parents shared another. So far she had managed to avoid the awkwardness of being near her family.

Finally, her luck ran out when Adam and Sheryl suggested they all take a walk down to the beach to stretch after their long flight. “I’d rather just rest in my room first,” Isabella suggested.

“Don’t be ridiculous, you were snoring the whole way here,” Sheryl scoffs at her excuse. “Come on, we’ll buy you a bikini that will make your brothers have to fight off all the boys around.” She dragged Isabella into a shore side shop.

“They seem to get along well,” Adam laughed.

“Don’t be stupid, Dad,” Andy grumbled. “How could you bring that whore into our house?”

“You watch how you refer to your sister,” Adam became stern.

“Whatever, once I’m in college, I won’t have to look at her.”

“Dad, why is Isabella a whore?” Alex asked Adam bluntly.

“The same reason you’re a bastard,” Adam’s response was only slightly malicious. Long ago he and Sheryl told him that he was not the son of Adam and that his father was actually a young man named William whom did not pay child support because he had been disowned by his parents and had less money than Sheryl. Alex saw William on a regular basis but it was hard to think of him as a father when Adam provided everything for him without complaining at all. He admired Adam’s sense of responsibility to the son of his wife’s affair.

“Isabella isn’t really my sister, is she?” Alex confirmed.

“You have absolutely no blood relation,” Adam admitted.

Alex smiled to himself. Despite not being treated poorly by Adam, he still felt slightly less welcome in his own house than the golden child, Andy, Adam’s and Sheryl’s only legitimate offspring. Having Isabella around made Alex feel slightly less ashamed of himself. At the very least, he was no longer alone in his shame.

Both Andy and Alex looked like their mother, with brown slightly thin hair. However, Alex’s was much lighter as William had been almost blonde. He also kept his hair shorter than Andy’s and combed properly like Adam’s. Andy let his grow out in some sort of effort to be rebellious. Although his parents never cared about how everyone viewed their debauchery ridden family, several people at school often gave him a hard time about it. As such he came to resent his parents slightly.

Adam, Andy, and Alex were already on the beach when Sheryl and Isabella arrived. Sheryl was wearing a large straw hat and comically large sunglasses. She had on a black bikini with a red skirt wrap. Isabella was wearing a blue bikini skirt and an open white sweater. She was too embarrassed to wear any less.

Alex noticed Andy staring and pinched him. “That’s your sister, you know.”

“Shut up, twerp.” Andy pinched him back.

“Alright, I’ve got a whole roll of film to use up by the end of the week so let’s get started.” Sheryl motioned for everyone to get in the frame of her camera. Adam stood off to the side, showing off his green swimming trunks and dad-grade Hawaiian shirt complete with sunscreen whitening his nose. Alex approached Isabella and wrapped his arm around her waist. Slightly annoyed, Andy mimicked his brother, placing his had on her other hip.

Sheryl took the picture and then laughed. “Now let’s take one where Isabella doesn’t look like a slut about to take two at once.”

Both boys had to back up slightly to appease their mother. Feeling standoffish, Isabella rolled back her eyes and stuck out her tongue, letting quite a lot of drool drip off it, while also making a V with two fingers on each hand, purposefully trying to look like a girl in the middle of an intense orgasm. Sheryl burst out laughing as she took the picture. “Teach me to open my fat mouth.” She slipped the camera into her over the shoulder bag, giving up for the moment.

“Can we go swimming?” Alex asked.

“I didn’t buy your trunks for you to make sand castles all day.” Sheryl waved him away uninterestedly.

“Can we go swimming,” Andy repeated in a mocking tone. As he was nearly an adult, it had been years since he bothered asking for his parents’ permission to do anything. Alex’s behavior just got on his nerves.

Isabella followed after Alex, wanting to go for a dip as well. Before they reached the sea though, someone stepped into her path, causing her to lose her pace with Alex. “Hey there, little thing,” a tall boy with blonde curly hair greeted her with a gleeful gaze that traveled from her sandals to her chin and then back down to her bikini top. “Are you bored? Want to hang out?”

“I just got here,” she sputtered in confusion.

“Shall I show you around,” the boy offered.

“Show me what, the ocean and the sand?”

“She’s funny, ain’t she,” he chuckled to himself. “Come on, we both know why you’re dressed like your legs have never closed since you hit puberty. Let’s just cut to it then. I know a place behind some rocks where no one will notice us.”

“I was really hoping to swim,” Isabella did not quite catch his hints.

“Alright, I don’t hate ’em stupid either.” He grabbed her wrist and dragged her toward a rocky area of the beach.

“Hey, what’s going on?” Alex returned from the water when he noticed Isabella was not with him.

“Oh, the brother’s back. Thought I ditched you,” the boy was not pleased with the intrusion.

“Is this guy bothering you, Isabella?” Alex asked.

“Oh, that’s a pretty name. Are you Hispanic? You look like you could be a local.” He then turned his attention back to Alex.

“No, I don’t need your help.” Isabella took the boy’s hand and led him around the rocks. Alex followed out of concern and curiosity.

Isabella squatted down and waited as the boy lowered his trunks. His cock was already quite erect. It was the first time Isabella had ever done this but she had seen her mother more than once. She stuck out her tongue and licked the underside of his shaft. “Oh yeah, baby, you know what you’re doing.”

Alex was sure they knew he was watching but did not care. He sat down on a large rock and cocked his head in interest. He wore a sad expression but did not interfere. He felt like he was watching a porno in person.

The blonde boy shuddered when Isabella took his whole cock into her mouth. She sucked on it and tried to coat it with her saliva. He placed his hands on her shoulders and moaned. He seemed to be working his way up to pulling her toward him but not forcefully. She swirled her tongue around his shaft to keep him feeling good.

Again he moaned while leaning his head back. He put his hands on her head and wound his fingers in her beautiful curly black hair. She gurgled slightly as he pulled her onto his cock, touching the tip to the back of her throat. “That’s right, baby, take it all the way down.”

She pulled her head back and allowed him to tug her in the opposite direction, sliding on and off his cock slowly. The boy was enjoying himself too much. His cock was quivering. Suddenly something warm and hot filled Isabella’s mouth. Her first instinct was to pull off his cock and spit but he covered her lips. “Swallow it,” he ordered her greedily.

With difficulty she forced the slimy liquid down her throat and then opened her mouth to show him that it was gone. “Damn girl, I had no idea you’d be so into this.”

“Gross,” Alex’s voice interrupted them.

“Are you still here? Do you get off watching your sister suck me?”

“She’s not my sister, but I bet I wouldn’t care if she was. That’s one talented mouth, Isabella. Why haven’t you shared that at home?”

“Go away, Alex.” She rolled her eyes.

“Is this how you plan to spend the whole vacation; degrading yourself swallowing sperm? How exactly do girls live with themselves?”

Isabella’s face was red with anger as she stood up and marched toward Alex with her hand raised to slap him. He did not move at all. “Hold on there, princess.” The blonde boy grabbed her hand. “That’s not how you shut a man up. Make him regret his words by showing him. I bet he wouldn’t complain so much if it was his dick you were sucking.”

Isabella allowed him to push her down to her knees again. Alex was slightly confused but did not stop her when she tugged his trunks down enough to expose his cock. It was already hard from watching her take care of the other boy. “Just so you know, I don’t like you that way,” she informed him before taking his cock into her mouth.

“I guess that’s why you’re a whore,” he muttered to himself. Having heard him, she bit down slightly as punishment. “Ow, okay, sorry,” he apologized quickly.

Her mouth was already getting sore after the first boy. It was slow going and difficult to satisfy Alex. Eventually she resorted to pushing down so that his cock slipped into the back of her throat. Even without consistent movement, the sight of her taking him so deep was enough to get him off. He was, after all, a virgin.

Isabella did not even try to pull off in time to avoid Alex cumming directly into her throat. She swallowed without even tasting his semen. When he was done cumming, Alex pulled her off of him by her hair. “Isabella you are one sexy slut.”

“If you say anything to Andy or Dad, you’re dead,” she warned him.

“Why would I. This is gonna be our little secret.”

“Don’t forget about me,” the other boy reminded them of his presence. At the same time, he caught his thumbs in the waist of Isabella’s bikini skirt and pulled it down to the ground, exposing a neatly trimmed patch of black hair above her beautifully puffy cunt lips. She instinctively covered her crotch but he used one hand to pull her hands away before cupping her cunt with his other hand.

She moaned as she felt his fingers curling up, trying to force their way into her extremely tight cunt. “I’m not really in the mood for that,” she breathed deeply.

“So what? I am in the mood.” He finally jabbed one of his fingers into her.

“Ow.” She winced in pain. “If you don’t stop, I’m gonna scream.”

“Some slut you are. You’re more of a tease.”

“I only sucked you off because I thought you were gonna beat up Alex if I didn’t.”

“How about I still beat him up if you don’t let me break you in?” the boy whispered in her ear.

“Alex, a little help please?” Alex tilted his head in thought rather than responding. He was not sure he wanted to give up a chance to watch sexy Isabella getting torn open by a cock. “What do you want?” she begged him.

“Oh, you’re bargaining?” Alex’s face lit up with intrigue. “How about this; you’re my slave for this whole trip. Whenever I want it, you have to strip and show me everything.”

“Alex!” she was not happy.

“What’s it gonna be, princess; him or me?” the pushy boy taunted her.

“No sex,” she warned Alex.

“That’s not your choice. You’ll do whatever I say, whenever I say. You get a whole room to yourself. Well now it’s my room too. I’ll be by later tonight. You’re gonna be naked with your head hanging off the bed. I want to see how far down your slutty throat I can get without choking you.” Isabella gritted her teeth while glaring at Alex.

“Well, what’s it gonna be?” the boy asked while pushing a second finger into her.

She gasped loudly before responding. “Fine,” she grumbled.

“What’s fine? This?” He placed her hand on his once more erect cock.

“I’ll be your slave, Alex,” she addressed him directly while trying to ignore the other boy. “This slut and all her holes are yours for one week. Please be gentle with me.”

“Aw man,” the other boy groaned. “Fine. Can I get one more go at your mouth though? Seriously not feeling the blue balls.”

Isabella rolled her eyes as she sank back down to her knees. By now she was used to the feeling of sand grating against them. It was somewhat exhilarating to know that her place on this trip was on the ground with her mouth open and a cock inside her. She was getting slightly wet thinking about it.

“Holy hell,” the boy exclaimed when he noticed her touching her own glistening crotch. He grabbed her by the ears and shoved his cock into her open mouth. She took him in as deep as she could but he shoved in deeper. “This time, I get everything,” he warned her. She felt like coughing but her throat was too full. Every time he pushed into her, she lost more breath and became more dizzy.

She crossed her eyes while trying to watch the pole of meat disappearing into her own face. He pushed so hard she had to lean back, thrusting her chest forward and showing off her hand stroking her own cunt. With her other hand she pulled her bikini top up, exposing her breasts. She pinched and played with her own nipples as drool fell onto them from her filled mouth. Her tongue was sticking all the way out, sliding on the underside of his shaft.

Alex’s cock grew hard again as he watched what he could only describe as the most amazing thing he had ever seen; a young pretty girl masturbating as she let a complete stranger treat her mouth like a gas station glory hole. Only the whites of her crossed eyes were visible and her chest was shiny with sweat and drool.

It was too much for Alex to hold himself back. He grabbed her hips and pulled them toward himself so she was now bending forward. Her cunt was so tight he barely found the hole with the head of his cock but when he did, he thrust as hard as he could. She screamed into the other boy’s crotch as her hymen gave way.

“That’ll make her mad,” the boy laughed.

Alex did not care. Gripping her hips and digging his fingernails into her round ass he pulled out to the tip and slammed back into her. Her eyes uncrossed and rolled into the back of her head. She grabbed the other boy’s waist and pulled him in as much as she could and gurgled and hummed against his cock until he began to cum. The first shot went straight up her nose and dripped out of her nostrils. She pulled back and slammed her throat down on him again.

His head jerked as the sensation overwhelmed him. Spurt after spurt of cum filled her mouth. She gulped it all down greedily. When there was none left, she shoved him away and gasped for air. “It hurts so much,” she moaned to Alex when she finally caught her breath.

“I know.” He combed his fingers through her hair gently.

She began to pant as he picked up the pace, slapping his thighs against her ass. “Am I a good slave,” she gasped and whimpered. “Is my cunt slippery and tight?”

“You are such a slut,” Alex laughed while rubbing her breasts and pinching her nipples.

“My mom always said, the only way I was gonna make a living was on my back with my legs in the air,” Isabella admitted.

“That’s not true,” Alex disagreed. “You don’t look like a slut at all. You’ve got such an innocent face. That’s what makes this so sexy though. Fucking a girl who looks like she’s never seen a cock before is the best.” H surprised her by pulling her sweater off and then he leaned down and bit into her shoulder.

“Oh my god!” she screamed as clear liquid shot out of her crotch, coating her legs. “I can feel it so deep when you do that. Bite me again. It’s like electricity in my cunt.”

“Something only a slut would say.” Alex bit her other shoulder.

She screamed in delight as more warm liquid ran down her legs. She could not control herself at all. “I want you to cum inside me but I don’t want you to stop,” she moaned. “Keep fucking me right here. I’m completely naked on the beach with a cock inside me. I’m so done for. I’ll never be able to look you in the eyes again when we get home.”

“We don’t have to stop,” Alex suggested. “You can keep being my slave when we get home if that’ll help you.”

“I want it so bad,” she moaned. “I want you to keep fucking me forever. What would Dad say though?”

It crossed Alex’s mind that Isabella might not be aware of the fact that they did not share the same father. She might be under the impression that her flesh and blood brother was fucking her right now. If that were true then she was enjoying the thought of incest. This only turned him on more. He slammed into her faster and faster until he felt his orgasm building. He thought about pulling out but Isabella reached back and touched his hand. “Don’t you dare,” she warned him.

No longer concerned, he thrust into her as far as he could and began to cum. Her tight cunt filled up quickly. Cum was seeping out around his cock before he stopped. “It’s so gooey,” Isabella groaned loudly while scooping some of it up. She licked her hands clean and then turned to show Alex her mouth full of semen. “It’s got no flavor but I love it. It’s slimy and gross and makes my stomach churn. It makes me want to throw up but I can’t stop. I’ve had so much already. I’m so full of cum.” She swallowed and then showed him her empty mouth.

“I’ll never be able to look at your face again without thinking about that,” he warned her.

“I’m a dumb little slut. My mouth is only good for sucking cock and swallowing cum,” Isabella announced proudly.

“I’m a little spent right now or I’d test out that theory,” Alex sighed while sliding his slowly softening cock out of her cunt.

She gasped while falling over in the sand. “I feel so empty,” she whined. “My cunt’s cold now. Alex, can you sleep in my room tonight. I want you to fill me up again. You don’t have to fuck me, just stay inside me until I fall asleep.”

“How can I say no to a request like that?” Alex lifted her up by her arms and hugged her tightly. “Come on, we better get back before we’re missed.”

“I guess I owe Sheryl an apology. She was right about me,” Isabella was slightly saddened by her new status as a slut. Alex rubbed her arms and her shoulders to warm her up slightly. He was trying to be supportive in his own way. After re-donning their clothes, the pair headed back towards the hotel, leaving the other boy to try picking up girls on his own. Isabella leaned back into Alex and let him guide her. She was not sure she was in love with him but she was definitely in love with sex.

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