Shelly comes to pick you up

Schools out and both your girlfriend and teacher were getting ready to go home.

HONK HONK HOOOONK

The sound of a loud honking noise interrupted and startled you before you could follow find either of them

You both turned to find a familiar car parked right out in the front of the school. Inside the car was a sister with sunglasses on as she grinned excitedly.

When she sees you looking at her, she waved and gestured you to hop in her car.

Oh no... You completely forgot about Shelly the past few days... Since you've been away from home for nearly three days now, your sister must be really pent up and horny at this point.

"That's your sister, correct?" Miss Cardigan asked curiously, "I think she's calling for you - you havent done her yet have you ?."

"Nooooo.... well not yet at least " You wink at her, shuffling towards the car. She winks back at you and gets ready to lave

"Oh, it's fine Mr. Doe - always remember , sharing is caring." Miss Cardigan waves at you and then start to leave towards her car - you see a slight damp patch on the back of her butt as she is moving and get hard as she sways it in fron of you and leaves. "Enjoy your weekend."

Shelly rolled up the car window with a smile as you came up to her, "Hey sexy,you'll never guess but mom had to urgently go and meet up with dad as dad won a 2 weeks couple vacation in a lottery - so we have the whole house to ourselves. So , now that your finished with your teacher .... dont look at me like that John - it doesnt take a genius to figure out what the two of you were up to. Anyways as I was saying - how about some action with your sis..." She stops as she sees Tiffany next to you.

"John - is that your new girlfriend ? Wow ... she's a hottie"

"And same to you John's sister- John , arent your going to introduce your girlfriend to your sexy sister. " Tiffany looks at you with expectant eyes and she starts rubbing your dick in front of your sister.

"Oh yeahhh... Tiffany meet my sister Shelly - Shelly Tiffany."

"John - I have some homework and I wanted to cum with you and finish it off , that wont be a problem will it ? " She starts messaging your dick even more in front of Shelly as she's looking at you for an invitation.

Shelly looks at the both of you and says - "Both of you get into the back , before you make me any more horny - you can continue in the backseat. No John - no one is asking you - get your stud ass with your sexy girlfriend in the backseat of my car. "

Both you and Tiffany scuttle inside the car, Tiffany not letting you or your dick go at all.

Looking out the window, you scrunch your nose up in confusion when you see a familiar group of guys beat their chest and hold up peace signs for you.

"RESPECT, BRO!"

"So," Shelly started off, "You guys having a good time back there. "

"Noooo.... not as long as I am hard." you yell back at her and Tiffany starts unzipping your cock and licking from the bottom to the top.

"Sounds rough, bro." She hummed. "Tiff - I know we just met, but you could make his cock slip more easily into your mouth if you pour your spit on it."

"Thanks for the advice Shelly. I dont know what John did to me , but he more or less awakened my inner slut and now has me banging him everywhere. I know he turned you into his cumslut as well - so did you find the journey exhilirating ? "

"Yeah... I dont know but recently John has come out of his shell and wow did he ever cum. The taste of his cumm.... Ohhhyeahhh... And the thought that I am his sister .... . ohhh thats just perverse - but I dont know , maybe it runs in the family. "

"Dont worry sis - if I may call you that. He is as perverted as you , just takes him a little bit of time to admit it. "

"Shelly , Tiff - you guys are now just ganging up on me - just wait - see what I do to the two of you once we reach home."

She chuckled as she tells you, "Don't worry. You'll have plenty of time to relax and have fun at home, you enjoy with your new girlfriend."

You feel Tiffany mouth hum and then she inserts a finger right below your balls and pushes inwards - you never felt this way before and shoot - you cum into your girlfiriends mouth for the umpteenth time today. She looks at you and blinks and shows your cum in her mouth with her pink lips.

Shelly looks at the back with her rearview mirror and she got turned on by the sight of Tiffany taking her load and looks at the both of you and says - "Now bro - that was ho... "

Before she could finish her sentence - Tiffany quickly started kissing your sister and then transferred your cum from her mouth to your sisters. Shelly never needed an invitation and she readily accepted the offerings from Tiffany as they kissed and swapped and swapped and kissed till there wasnt anything left. She then proceeded to swoop the cum from Tiffany lips and sucked it off.

"No Shelly - that was HOT." You tell the two of them as they are smiling at you and you show that your cock is again erect from the sight of his girlfriend swapping with his sister.

Shelly... Bella... Tiffany...

"Girls - I think we are going to have a lot of homework to do as I suddenly have a lot of catching up to do."

"I dont mind John - as long as your sister watches and I get the to suck you off - you sud." Tiffany looks at you with lusty eyes

"Well Tiff - if I may call you that - I dont think we'll have a problem with that as long as you can put up with a pair of brother sister perverted duo. And John - you seriously have to fuck me if you have fucked everyone else" She looks at her and then blinks erotically at the both of you - "You just wait , you little sex kitten , I have a lot of things I want to do to you. Bro - you should have found her earlier , what the hell were you doing ? "

"Well - lets just say I was dreaming and finally decided to wake up. I had some hang-ups , but I think my dirty sexy cumslut of a cheerleader girlfriend has finally awakened my inner self " And you just signal internally to the other Johns - guys get ready, I think I'll need a little more juice tonight. Dude - dont worry we're here for you , just you wait.

"Ok, bro. Get nice and comfy - both of you. You're gonna need that energy for later tonight." She giggled mischievously.

You just cant believe your luck and you suddenly decide to kiss your sister on her lips - you kiss her then you kiss Tiffany and then the both of them kiss and then you put your arms around the necks of both your sister and girlfriend lip lock them in a trioka as the three of you make erotic movements with your mouth and tongues swapping your saliva. Finally you guys break up and start the journey back home.

Tiffany calls up her home to tell them she will be with her friends tonight and will come back the next morning. You cant wait but start thinking of more erotic things that will happen once you reach home.

You dont notice - but your sister is also smiling in the drivers seat , getting herself ready to pounce on the both of you and starts thinking of her own erotic plans.