"This thing is a wreck. Why are we driving this thing again?" asked Rebecca. Rebecca's long dark brown hair hung down over her d-cup breasts. She wore a short colorful bikini cover-up dress. Her bikini had a skirt bottom that John found mockingly modest.
"Because you and John didn't want to drive and Mia doesn't have a car yet. And mine decided it didn't want to start today. So we take the beater. And you'll stay quiet about it." said Cassy.
Rebecca mockingly stuck her tongue out at Cassy and Cassy reached out as if to grab it. Rebecca pulled back and Cassy went about getting ready.
John looked at the two of them repeating their lines. He wanted to shake his head at them but Mia was looking his way. They had planned all of this, the two of them. John had been there but was not entirely part of their planning committee. He had not really fought it either. No part of the plan was really so bad, he thought. As long as they were not caught. It was manipulative, sure, but the end result made the manipulation acceptable, right?
Cassy bent down to pick up her bag, giving John a view of her bikini bottoms. She was wearing a short sheer chiffon cover-up with a thin white belly shirt over her black bikini. The small halter top and side-tie bottoms left little to the imagination with so little to cover them. Making a motion as if to readjust her bottoms, she moved them to the side a moment before putting her bag in the trunk. John appreciated the view. Both her and Rebecca's clothing, he knew, were very carefully selected to be provocative to both him and Mia without being "too much", in Rebecca's words. They were also chosen to be easy to remove and provide easy access whenever the opportunity presented itself throughout their day.
Mia was standing next to the car, the only one dressed in normal summer clothes. Mia poked her head in the back seat and saw a piece of metal poking up through a hole in one of the seats. She could not tell where the piece of metal was coming from, or what it was meant to be doing, or if it had been important to the car's integrity at some time, but it was certainly sharp. No one was sitting in that seat, and there was no middle seat.
"Um, there're three seats guys. How are we going to all fit? You saw that piece of metal sticking up, right?" said Mia.
"Yeah, it's been like that forever. Rebecca will just sit on John's lap, it's not a long trip. We'll just have to take the back roads and enjoy the view." said Cassy.
She was lying, John knew. That piece of metal wasn't even part of the car and he was not even sure it was possible for a piece of metal to end up like that short of a horrible accident. It was Cassy's idea to make it so that one of them had to sit on John's lap. She wanted it to be Mia, but John said that would be too strong too quick, especially after what Mia saw a few weeks ago. They were all shocked that Mia pretended she had not seen anything and continued on with their plans to go to Water World in the first place. She had seemed a little nervous when she showed up this morning, but other than being a little reserved she had not said anything about it. John knew that one of the girls would bring it up later in the day after they had spent some time warming her up. For now, they were all going to pretend nothing had happened.
Mia clearly looked uncomfortable at the idea of Rebecca riding on John's lap, obviously thinking back to the incestuous threesome she walked into not that long ago. But she was also pretending that she never saw any of it, and so she held her tongue. It makes the most sense to have the sister ride on the brother's lap, as there would be no chance of sexual tension, right? At least, that's what all four of them were going to pretend was true.
"Alright, time to get going. It should only take about thirty minutes on the back roads", said Cassy.
Cassy got into the driver's seat and Mia sat next to her. Cassy put her magnetic phone case against the phone holder and turned it so it faced only her. Also pre-planned, for any communication needs. The safe back seat was right behind the front passenger seat, so John sat behind Mia. Thankfully the beater car had a high ceiling and plenty of legroom. Mia's seat had been moved forward ahead of time so that Rebecca and John would have extra room. John had not been told every part of their plan but had pieced together what Rebecca had in mind for this part of the trip. As Mia was busy upfront, John and Rebecca both got into position in sync. John slipped his trunks down just enough to pull his penis up over the top of his trunks while Rebecca pulled her dress up and carefully sat on John's lap so that her dress was not between her and John. She also pulled the sides of her bikini skirt up and repositioned it so that her ass was right on top of John's now aroused cock. John quickly felt the surprise Rebecca had mentioned to him the night before. She had cut out a piece of the bikini underneath the skirt so that he had easy access to her already wet pussy.
The cut hole was just large enough to have easy access but not large enough to easily notice if the skirt flipped up during a water slide. It might make someone question what they saw, but not get them kicked out. She would still have to be careful bending over.
Cassy rolled down the windows and turned the pop music station up as she pulled out of the driveway. John and Rebecca didn't want to look suspicious so they waited a few minutes, Rebecca's wet lips sitting on top of John's hard cock. As Cassy pulled onto the bumpy gravel back roads they knew it was time to move. Rebecca leaned forward ever so slightly as John reached down to lift his hard cock and moved it against her waiting pussy lips. Just then Cassy hit a large pothole on their side of the vehicle. John's cock thrust into Rebecca, lubricated with her juices and his precum, and Rebecca gasped. Mia looked back at them both and Rebecca smiled at her.
"I'm fine, I just hit his knee," said Rebecca. She looked back at John with a sparkle in her eye that told him she was enjoying this far too much. The sudden thrust into her combined with almost getting caught and doing this directly behind Mia was going to be almost too much for her. He saw her reach for her phone and start texting.
In a group chat between her, John, and Cassy she wrote: I vote we don't move for thirty minutes and Cassy hits all the potholes. Tell Mia the beater has bad steering.
"READING NEW TEXT MESSAGE FRO-"
Cassy grabbed her phone quickly from the phone holder and swerved to stay on the road as she stopped the phone from reading the text. Mia looked over with big eyes and a clear question on her mind.
"Sorry, it was from someone I'm seeing, I didn't want anyone to hear it. I set it to show me the text in a big font instead. I didn't know I had it set to read them out loud." said Cassy as she set the phone back against the holder and turned it so Mia couldn't read it.
John felt Rebecca shaking from quiet laughter. Cassy looked at both of them in the mirror that she had turned so she could barely see them but Mia couldn't. She winked. Rebecca nudged John and nodded backward and John pulled back against the corner a bit, making it even harder for Mia to see without her turning her body around. Rebecca leaned back against John, completely relaxed with John still rock hard inside her.
Cassy began to slowly move back and forth along the empty gravel roads hitting bigger rocks and bumpy areas. The constant bumps and vibrations were a great source of pleasure for both John and Rebecca, who tried not to move at all. After ten minutes of this Rebecca grabbed John's hand and placed it in front of her crotch. He lifted her skirt and moved his index finger to reach between the cut fabric to find her clit. The fabric around the opening was noticeably wet, and he knew they'd have to stop before they got to Water World so he could dry his trunks of any juices. He began rubbing her clit, but mostly he laid it against it and let Cassy take the wheel, so to speak.
