After another passionate make out session, Natalie broke off the kiss.
‘I’m going to go take a shower. Y-you’re welcome to join me,’ Natalie said hesitantly, kissing her brother again.
A minute later, Jeff heard the water turn on and he decided to mess with the Chronivac once more. He changed Natalie’s settings again, making it so Jeff Stevens was the only person she was attracted to, completely removing any attraction she had to her boyfriend. After a moment of thought, he added his girlfriend’s name to that list too, setting the attraction to 100%, which technically made her bisexual, if only for one person. Just for fun, he made her breasts slightly larger, going from a D-cup to an E-cup, making sure she didn’t notice that last change.
Jeff then selected his girlfriend, Sarah, and made it so she was attracted to Natalie too. He also made it so she would have no problem with Jeff fucking other girls. He hit apply, and went to join his sister in the shower, deciding to call Sarah over for a threesome later.
Natalie was still conflicted. She had just had sex with her brother, and not only did she love it, but she didn’t want to stop. She thought about her boyfriend, only to realise she was nowhere near as attracted to him as before. She began to get slightly worried, but these feelings were quickly switched for lust as soon as Jeff walked in.
As Jeff opened the door, he was greeted with Natalie’s gorgeous body in the shower. Her perfectly shaped E-cup (formerly D-cup) breasts jiggled on her chest as she turned to face Jeff, smiling. Her ass on top of her thick thighs perfectly complemented her waist, giving her a beautiful hourglass figure.
‘Come in, brother,’ she said, accentuating the last word. Jeff stripped down, and with his cock already hard, met his sister in the shower. Natalie wasted no time, immediately planting her plump lips on her brother’s face, and they began making out, while Jeff put his hands on her massive ass.
Jeff broke off the kiss for a moment, and reached down to his sister’s pussy, inserting a finger and getting a satisfying moan from her. He continued to make out with her, his fingers causing Natalie’s legs to go weak. She began to stroke his cock.
Jeff, now ready to fuck again, grabbed his sister by the waist and turned her around, bending her over, which made his sister giggle. He rubbed his cock tip against the lips of her pussy, as he grabbed a handful of her tits.
Natalie felt a wave of pleasure as Jeff pushed inside her, his cock perfectly hitting her g-spot. Jeff thrust into her pussy, causing her to have to brace herself against the wall.
Not much time passed until they both orgasmed at the same time again, collapsing in the shower. They continued to make out and grope each other until the hot water ran out, making them both yelp and jump out of the shower.
Jeff put his clothes back on and went to his room. He decided now was a good time to phone his girlfriend.
‘Hey babe!’ said Sarah.
‘Hey, can you come over to my place? I have a surprise for you,’ said Jeff.
‘I’ll be right over,’ Sarah replied, hanging up.
20 minutes later, Sarah showed up at the door. They greeted each other with a kiss, Sarah having no idea who else has been kissing her boyfriend.
‘So I was thinking,’ Jeff said, ‘You know how you wanted to have a threesome?’
‘Yeah…’ Sarah responded, waiting for a proposition.
‘I think i’ve got the perfect person,’ Jeff said, turning around, as his sister walked out behind him.
‘What, her?’ Sarah said, a bit confused. ‘Your sister?’
‘Yeah. Is that alright with you?’ He responded.
‘Well, but, she’s your sister! Your blood relative! I…’ Sarah’s eyes met Natalie’s again. Any problem Sarah had with Jeff fucking his sister disappeared when she saw Natalie’s beautiful body. There was a spark between them, as both of them struggled to understand their new feelings. Neither of them had had feelings for girls before, so this was unexplored territory. They both blushed and looked away. Sarah simply turned to Jeff and nodded.
‘Wait for me in the bedroom,’ Jeff said, smacking both their asses.
Natalie and Sarah sat on the edge of Jeff’s bed; there was a clear tension between them.
‘So, how have you been? I haven’t seen you in about 2 weeks,’ Sarah said, trying not to look at Natalie’s enormous breasts.
‘I’m pretty good, just been busy with college stuff is all,’ Natalie responded, staring longingly at the door.
Sarah decided to be blunt, and asked, ‘what’s going on with you and Jeff?’
‘Uh… I…’ Natalie put her face in her hands. ‘I had sex with him. Twice. And the weirdest part is, it didn’t even feel wrong.’ Natalie said, covering her face in embarrassment. ‘I’m really sorry.’
‘Don’t be,’ Sarah replied. ‘Personally, I think it’s hot as fuck.’ Natalie looked up at Sarah, surprised. She immediately got butterflies in her stomach; Sarah was easily the most beautiful girl she had ever seen.
‘Speaking of hot as fuck,’ Sarah said. She held Natalie’s chin and kissed her on the mouth. At that moment, Natalie lost all inhibition, and began making out with her. She opened her mouth slightly, accepting Sarah’s tongue inside.
Sarah and Natalie collapsed onto the bed, their lips not separating for a moment. Sarah grabbed Natalie’s shirt, forcing it over her head, exposing her braless boobs. Sarah planted her mouth on Natalie’s left nipple, making her suppress a moan. Both their pussies became soaking wet as they continued to make out.
Natalie took off Sarah’s blouse and unclasped her bra, freeing her C-cup tits. Their breasts pressed together as they kissed, their tongues entwined, as they both made out with another girl for the first time. Neither of them knew what happened to their sexuality, but they were certainly enjoying it.
Sarah was about to put her tongue into Natalie’s pussy when Jeff opened the door. He knew the Chronivac would work, but not this well!
‘Looks like you girls started without me,’ Jeff smiled, closing the door.
‘Sorry babe,’ Sarah said, giggling, her head still between Natalie’s legs. Jeff dropped his pants, exposing the 10 inch snake between his legs, causing Sarah to go wide eyed.
‘Jeff, it’s huge! You weren’t this big last time!’ Sarah said, holding Natalie’s hand, although neither of them noticed. Jeff walked over and kissed Natalie on the mouth, while Sarah watched. The taboo aspect of a brother kissing his sister so passionately made Sarah even hornier. She knelt down before Jeff, taking his cock into her mouth.
Natalie soon joined her, focusing on Jeff’s balls as he moaned with pleasure. This was the first time he had two girls on his dick, and now he was determined to not make it the last. They both licked his long shaft, as he put his hands on both of their heads. Natalie went to his tip, and took as much of his cock into her mouth as she could. His sister began to jerk him off again, while Sarah licked his balls, and he came into his sister’s mouth. Natalie swallowed her brother’s cum, and lay on the bed, with Sarah sitting next to her.
Jeff, upon seeing his sister’s pussy, was immediately hard again. Sarah guided her boyfriend’s cock into his sister’s vagina, watching her make a satisfied moan upon taking his full length. Sarah grabbed Natalie’s hand and kissed her passionately on the mouth as Jeff thrust into her pussy. Natalie came much quicker this time, owing to the beautiful girl who was now sucking her breasts.
Jeff pulled out of his sister and pushed his girlfriend down onto the bed. Sarah moaned loudly as Jeff entered her pussy. Natalie leaned down towards Sarah, kissing her again, not getting enough of her lips. Jeff’s thrusts became harder as Sarah’s mind began to go blank. Natalie was rubbing her pussy to the sight of her brother fucking his girlfriend, knowing she wouldn’t need her own boyfriend ever again. Natalie made out with her brother as he came into her girlfriend’s tight pussy.
Jeff lay down on the bed, with his sister and his girlfriend naked in his arms, cum still leaking out of their holes. They were both still caressing his cock as he laid out of breath. With two incredibly beautiful girls by his side, Jeff was in utter bliss.
Suddenly, Jeff heard the front door unlock. His mother and father had come home. Jeff frantically put some pants on as he ushered his naked sister and girlfriend to the closet.
His mother opened the door.
‘Hey Jeff, we’re back.’ She said. ‘Where’s your sister?’
‘Uh, she went out, I think,’ Jeff answered nervously.
His mother nodded. She could have sworn there was something different about her son but she just couldn’t put her finger on it. She closed the door, Jeff sighing with relief. He looked over at the closet, where his sister and girlfriend were making out again.
‘Are you thinking what I’m thinking?’ Jeff said, referring to his mother.