When Michael and Nancy arrive at the old High School to get on the charter bus, they found out along with the other thirty-eight people that the bus line had over book. The small crowd was furious. They had paid a lot of money for the four-day stay at the resort and their reservations were non-refundable. “We’re getting on that ga-damn bus!” one of the men in the crowd shouted at the bus driver backed up by others in the crowd. “Ok, but it’s going to be crowded with all your luggage. It’s your choice, but I don’t want to hear anyone moaning about how uncomfortable they are,” the bus driver said standing aside and letting the people file onto the bus. Michael found a seat all the way in the back, but there was no room for their luggage. Everyone was making do with what they had. Some people sat on their luggage, others jammed their luggage on the floorboard in front of their seats and sat with their knees up to their chest. Nancy looked around at the possibilities. “Michael, I think that we would be more comfortable if we stacked the luggage in one seat and I sat in your lap. That way we could at least stretch our legs.” Michael sat in the seat next to the window and stacked his suitcase and one of his mother’s in the seat next to him. Nancy stacked two of the others on top of the ones on the seat with the pillows and blankets drug the other one in front of seat as she backed in stepping on the seat between Michael’s legs pushing her ass against his face. Nancy wore a short mini-skirt and a thong, loving the attention she got from showing off her long legs. “Don’t fart, don’t fart,” Michael said finding his face smashed between his mother’s butt-cheeks. Nancy looked back and chuckled. “Sorry, honey,” she said getting the suitcases turned on their sides and boxing them in the one seat next to the window. Michael held on to his mothers hips as her butt slid down his chest to his lap. Michael had to spread his legs to allow room for his mother’s legs. Nancy pulled the pillows and blankets in front of her, so that she could lean against the back of the seat in front of them. The bus took off they were completely ready causing Michael to grunt as the bus bounced on the potholes. Everyone struggled to hold onto their luggage as the bus made its way off the gravel lot onto the street. “Are you ok?” Nancy asked her son hearing his grunts as they were tossed around by the bus. “Yeah,” Michael moaned. The bus bounced again causing Nancy to slid up on Michael’s stomach and back down as the luggage shift. Nancy felt the Velcro crotch of her thong release and the head of her son’s cock part her pussy lips. Michael wasn’t wearing underwear under his loose sweat shorts. Nancy looked back over her should quickly at her shocked wide-eyed son. Nancy tried to get up, but the bus bounced again and Michael’s hardening cock penetrated her cunt. Nancy tried again as the bus continued to bounce causing her to slid up and down on her son cock. “Mom, mom stop,” Michael whispered. “You’re making it worse.” “Michael, it’s inside of me,” she whispered back to him. “Maybe if you stop bouncing around, it will go down and slip out,” he whispered. The bus continued to bounce and Nancy put her face into the pillow. Her little outfit had finally gotten her into trouble. To make matters worse, she could feel her son’s cock continuing to grow inside of her. “It’s not going down,” she whispered back to him. “I can’t help it,” Michael responded back. The constant bouncing of the bus aid the feel of his mother’s hot pussy around his cock. Nancy moved her hips from side to side in hopes that it would slip out that way. “What are you doing,” Michael whispered trying to fight the temptation that was at hand. “I’m trying to get it out,” she whispered back to him. “You’re making me harder,” he protested. “Just try to be still.” Nancy started to tremble as she tried to fight the mounting pleasure caused by her son’s cock. She buried her face in the pillow as the bus bounced just enough to stimulate her. Nancy looked back at Michael and their eyes met. “I’m so sorry, honey,” she whispered. “These bumps aren’t helping any,” he whispered. “I’m trying to block out the feeling, but I can’t.” “I can’t either,” she said. “We might as well make the best of it,” he whispered. “What do you mean, make the best of it,” Nancy whispered harshly. “It’s not like we’re doing it on purpose.” “I know that,” she said. “…but how can we make the best of it?” “I was thinking that if I came, then it might slip out,” he said. “Michael, no,” she said trying to keep her voice down. “I’m ovulating. I’m not on the pill or anything. I could get pregnant.” “Ok, I’ll try not to cum,” Michael said. “Try hard,” she said harshly. Michael turned his head to look out the window in order to keep his mind off the feel of his mother’s pussy. Nancy wasn’t naive. She knew that men couldn’t hold out forever, and it was a four-hour straight bus trip. The bus hit a patch of choppy roadway and the bus vibrated. Nancy clinched her teeth into the pillow as her son’s cock jittered inside of her. She felt it building, she knew it was happening, she tried to fight it, but it erupted sending shivers down her spine. She wanted to cry. She knew that she should have thought better than to suggest sitting in her son’s lap in the first place, but it was to late. She didn’t think of Michael as a man, but only as her son. Michael closed his eyes tight and pressed his lips together. Sweat began to be bead on his forehead. Nancy looked back at her son as she felt his body twitching. Michael opened his eyes in desperation as to look to her for help. Nancy closed her eyes and put her face back into the pillow as she felt his cum shooting into her fertile cunt. The bus continued to bounce down the road. Nancy tried to imagine what she would do if she were to become pregnant by her son as his cock continued to move inside her pussy. She hoped that Michael was right, and his cock would shrink and slip out, but she felt no signs of it getting smaller. Instead, it felt as if his cock was actually getting larger. “It’s not working,” Nancy whispered back to her sweating son. “I know. I can’t help it,” Michael replied. The bus hit a couple of big bumps causing the head of Michael’s cock to rub against her special spot. Nancy moaned out loud. It was luck that other’s on the bus expelled their surprise to the bumps at the same time. Nancy held onto the pillow as the bus hit another rough patch in the road causing Michael’s cock to vibrate inside of her. She was loosing it fast. Her uncontrollable needs were taking over her whole body. Michael remembered the time when his mother had caught him jerking off while spying on her. She had punished him severely, and had never thought of her sexually again. Now, his cock was buried deeply inside of where he had once dreamed of being moving at the will of the bus. Nancy was lost and her pussy felt sore as more than an hour had passed, and she had cum three times on her son’s hard cock. She felt like his cock would never go down. She felt so guilty. It crossed her mind that maybe he was enjoying it. She remember seeing his reflection in her bedroom mirror stroking his cock with fury as she bent over with her naked ass to him painting her toes after her shower. She recalled how she scowled him and grounded him for months with the hardest chores she could come up with. Now, she was getting forbidden pleasure from his cock, and it was all her fault. She thought, if she was to become pregnant then that would be a just punishment for her being so reckless. Nancy whimpered into the pillow as the miles went by and one orgasm after another washed over her entire body. Michael’s cock stayed hard by the constant sensation of his mother’s cunt. Nancy had all but passed out when the bus finally turned off the highway. They jawing of the bus as it went around sharp curves made her alert to just how hard her son’s cock continued to be. “Wait until everyone get off the bus,” Nancy whispered to Michael as the bus pulled into the hotel. Michael grunted as his cock exploded inside his mother for only the second time during the entire four-hour trip. Nancy felt it and realized that he had truly been trying not to cum inside of her. His cock began to shrink and it slipped from her soaked pussy as the bus jerked to a stop. She saw that he was worn completely out. Nancy remained still until the others had exited the bus with all their luggage. She pushed their luggage off the seat into the isle. She continued pushing them until she was able to climb off her son’s lap and get to the isle. She pulled the thong off from under her skirt and tossed it under one of the seats. She quickly ruslted through her bags and pulled out a pair of jeans and slipped them on. She then took off the little mini-skirt and tossed it under the seat as well. Michael looked like he could barely move. The top of his shorts and the bottom front of his t-shirt were soaked with their sex. Nancy found another pair of shorts in his bag for him. “Com’on honey,” Nancy whispered. “We have to hurry before someone comes. Michael managed to get into the fresh pair of gym shorts before the driver re-boarded the bus. “Is everything alright?” the bus driver asked. “We’re fine, thank you,” Nancy replied fighting the pain between her thighs as she struggled with the luggage. Luckily, there was a bellhop waiting outside the bus to help them with the luggage. Nancy managed to get them checked in before Michael fell over. When they got to the room, Nancy rolled her eyes. There was one twin bed and the only privacy was the short wall that divided the toilet from the sink. Michael fell on the bed and was snoring in minutes. Nancy got in the shower and wanted to scream when she found that the only thing she had to dry off with was a hand towel. She started laughing when she looked through her bags and remembered that she had packed nothing to sleep in nor a single pair of panties. Nancy figured that it must have been karma for loose ways. She riley ever wore panties and always slept nude. She had been mainly a tease, and only on occasion actually slept with a man. Nancy sat gingerly on the bed next to her sleeping son. She recalled his face in the mirror and began to realize that she had caused him to lust after her. Her door had been open, she slept nude on top of her covers many nights, and she thought she must have exposed herself to him daily without a thought. It was karma, she thought as she lay on her side facing her son and drifted off to sleep. Nancy woke to find her Michael naked against her from the back, one of his hands cupping her tit, and his hard-on pressed between her naked butt-cheeks. She knew he also like sleeping naked. He must have taken his clothes off during the night. She raised her hand to his and he gently squeezed her tits and pressed himself tighter against her on the small bed. Nancy wished that she could have taken back all the years of her selfishness, but she knew that was the one thing that she couldn’t do. She knew how men reacted to her seductive outfits, but could only imagine how her son must have been feeling with her constant exposure. She realized that he couldn’t help himself, being inside of her. She felt so selfish knowing that she allowed herself to enjoy the feel of his cock, when she knew that he was trying desperately to control himself. He should have enjoyed himself, she thought angry. He deserved to enjoy fucking her. It was her fault, not his. She squeezed his hand on tit making up her mind that she would allow him to enjoy fucking her even if she might end up pregnant. Nancy rolled over rolling him onto his back and stretched her leg across his body as he slowly woke. She leaned down and kissed his chest and brought her knees up as she grabbed hold of his hard cock. “Ma…” Michael started to speak. “Shsss…,” she hushed him putting her hand to his lips. “You deserve this.” She guided the head of his cock into her still sore pussy as she lowered down on it. Michael looked up at his mother’s tits hanging over his face. Nancy smiled at him and lowered one of her nipples into his mouth. Michael’s hands slid up her thighs to her hips and pulled her down on his cock as he pushed up into her. “Cum in me, baby,” she whispered to him. Michael pumped his cock faster until he exploded inside of his mother’s pussy. Nancy came down on him laying her head on his chest as he wrapped his arms around her. “I’m so sorry, baby,” Nancy whispered. “For what?” Michael asked. “For being so selfish…walking around flaunting myself in front of you and expecting you not to be turned on by that,” Nancy said. “I punished you before, for doing something you had every right to do.” She rose feeling his cock move inside of her. “Yesterday taught me a lesson, but I had no right to expect you not to enjoy it.” “I didn’t enjoy it,” Michael said. “I couldn’t help it.” “I know,” Nancy said. “…but I shouldn’t have asked you not to cum.” “Not wanting to get pregnant is a good reason,” Michael replied. “I deserve to get pregnant,” Nancy said. “I was my fault we ended up in that position.” “It was an accident,” Michael said. “A weird accident, but neither one of us planned it.” “Maybe so, but I realized something very important yesterday,” Nancy said. “I’d been wrong in the way I’ve treated you all these years and I’m going to try and make it up to you.” Michael looked at his mother’s tits. They hung down to the top of her stomach and the nipples pointed slightly outward. Nancy took his hands and placed them on her tits. “If you want to touch them, you can touch them anytime you like,” she said squeezing his fingers on her tits. “I realize now that I have been teasing you for a long time. You deserve to have sex with me anytime you want.” “Mom, we would be having sex all the time,” Michael said trying to lighten her mood. “If that’s what you want,” Nancy said moving her hips as she felt him pushing his cock into her again.