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The Nitrous Oxide Affair
(Part One)
Steve Makay was your average 18 year old gear-head. He had little time for anything but working on his 1970 Chevy Chevelle SS. He had an occasional girlfriend, but they soon got tired of competing with that damnned car, and he didn't much care one way or the other. He'd saved his money from summer jobs, and had finally been able to buy a LS7 454 Cubic Inch motor. It was one of the best looking and running cars around in his town, but it also had a small problem. Too much compression and performance for the low grade fuel available. Trying various octane boosters and other modifications, he'd heard about using a Nitrous Oxide Injection System. Checking into the costs, he decided that this would be his best choice. It would also be a choice that would change his interests drastically on many subjects.
Late Saturday evening found Steve working alone on installing his NOS (Nitrous Oxide System) onto his Chevy. He was just finishing the installation of the brackets used to hold the NOS Cylinder in the trunk of the car, when his 18 year old sister Gina came in with her girlfriend Carla. "Whatcha doin Stevie?" Gina asked in her usual screechy tone. Hitting his head on the trunk lid, Steve was surprised, and now pissed. "What the fuck Gina! Can't ya see I'm busy here?" he nearly screamed.
"I'm sorry, I didn't mean to scare ya, but I was wondering if you could take Carla home when you're done fixin this thing" she asked in her best "suck up" voice. Now Carla was not your average looking 18 year old. She had long brown hair, big brown eyes, and the cutest little ass and tits he'd ever seen. She was also a prick teaser way beyond her years. She knew she had a good looks and a great body, and she could flirt with the best of them. Being a warm summer night, she was dressed in a tube top and a pair of cut-off shorts. Steve peered over the trunk lid and just looked at her cute little tits and legs. "Ahhhhhh, shit, I don't know when I'm gonna be done with this thing, it'll probably take me at least another hour before
I'm ready to take it out for a test run, and besides that, why doesn't she just stay overnight like she usually does?" he said as he went back to work on the car, and shook off the thoughts in his mind. Gina, who also was no slouch when it came to looks, having short blond hair, blue eyes, and an angelic face, replied with a whine, "Awwww please Stevie. I have to go to Debbie's house with Mom in a few minutes cause Deb's Mom and us are gonna go shopping early in the morning, and I'm gonna stay overnight there. Besides, we told her Mom that you said you'd take her home already." "You WHAT?!!? Steve yelled as he came out from under the trunk. "What the fuck did you tell her that for? I ain't got time to be a goddamnned taxi ya know." Carla hadn't said a word yet the whole time they were in the garage, but now she grabbed Gina by the arm and said disgustedly "Aw forget it Gina, he's bein a real pain" and began to tug Gina away. "Wait", Gina said and pulled away, "I never told Mom about you and your buddies drinkin beer in here last week Stevie, so you OWE me a favor. This is my favor, and then we're even" she said with smug assuredness. Steve knew she'd tell on him, so he had no choice but to agree. "Allright you little shit, but this is it. We're even after this. Right?" he said with angry resignation. "Yep, even Steven." she said with a giggle, and trotted off to go with her Mom to her other girlfriends house. A minute or two later, he heard them get into his Mom's car and drive off.
Looking over the trunk, he fairly snarled at Carla "Sit down over there, and don't touch anything. I'll get you home just as soon as I finish this." as he pointed to a chair. Next to the chair was the bright blue NOS cylinder. Carla sat down with a bored "hmmph" sound and just stared outside. Steve continued working on the hoses and valves for the NOS system, and then he heard music.
"Who told you you could turn on the radio?" he asked. "I'm bored" she replied and walked back over to the chair and sat down. "Tough shit. Just sit there and I'll be done in a few minutes" he replied and went back to work. Carla stuck her tongue out at him as his head disappeared under the lid, and her fingers found the valve on the NOS Cylinder. Turning it slightly, she heard a faint whooshing sound, but no smell. With the music on, Steve did not hear any of this. Crinkling her nose, Carla opened the valve some more. She bent over to smell the escaping gas, but there wasn't any discernable odor. She sniffed it for a few seconds, and sat back upright. All of a sudden, she started to giggle. She hadn't turned the valve off, and the gas kept wafting upwards towards her. Her giggling turned into loud laughing, and Steve heard it. He walked over towards her and heard the gas coming out of the bottle. "What the fuck are you doin!" he screamed at her and turned the valve off.
Carla was laughing and her head began to weave and bob. Steve grabbed her by the shoulders and picked her up from the chair. She immediately went limp in his hands and he almost dropped her on the floor. He dragged her dead weight body over to a mat he used to lay on when he worked under the car.
He was scared what was wrong with her. He lowered her down to the mat, and as he did, her tube top caught on his arms as she slid through. There she lay on the mat, with her cute little tits just staring up at him. "CHRIST" he said to himself and pulled the tube top from around her neck and tried to place it back on her young firm tits. He looked at her face, and saw she was totally unconscious. As he was trying to put the top back on, his fingers couldn't help but brush against her firm mounds, and his dick unconsciously got hard.
Then it hit him. "The Nitrous!" he thought to himself, "Shit, that's Laughing Gas, just like what they use at the Hospitals. No wonder she's out cold" An evil thought crossed his mind. "I wonder just how "out" she is?" Carefully watching her face, his fear turned to lecherous thoughts. Putting his hand at her crotch, he pushed slightly down on her pubic mound. No reaction showed on Carla's face. Getting bolder, he pushed a finger under the leg of her shorts and probed near her pussy. He felt the legband of her panties, and wormed his finger past it, and felt her soft hair on his finger. Still no reaction on her face, and he decided to go further. Unsnapping the waist on her cut-offs, he unzipped them, and pulled them down past her thighs. As he pulled, her panties came off with the pants, and he had a clear view of her sparse haired pussy. He just couldn't help himself, and he pushed her legs upwards and then spread her legs so he could see her pussy wide open. He lowered his head and put his nose right up to her pretty pink hole, and took a deep sniff. It had almost a powdery smell. Real clean and sweet.
He wet his finger, and put it at the opening. Sliding it up and down, he found the hole and slid his wet finger into her. It felt so warm and tight, that he almost came in his pants right there. He wasn't quite brave enough to attempt fucking her, at least not yet. He pulled his finger out and tasted it. It tasted as good as she smelled. He licked it again, and put it up to her tiny little puckered pink asshole. He'd never played with any of his girlfriend's assholes because they wouldn't let him, but he always wanted to try it once. He pushed the finger slightly against the crinkled hole, and finally it gave way. Up it went into her tiny ass. He began corkscrewing his finger around as he pushed deeper into her bowels. The sight of his finger against her cute little ass cheeks made him shiver. He just had to try it. He pulled his finger out of her ass and looked at her face. Still no expressions or changes, so he pulled his pants down and was going to put some spit on his cockhead, but found that it was covered with lubrication already. Smearing it around the head, he pushed her legs back again, and put the head up to her pussy. Rubbing it up and down, he felt the opening and pushed his hips forward slightly. He watched as the head slowly disappeared into Carla's young, tight pussy. He pushed a little farther and felt her hymen blocking his way from entering her any further. Her pussy was so tight and felt so good, and the sight of his dick stuck into this almost hairless pussy almost made him lose control, but he didn't want to try to push through her cherry. He reluctantly pulled out of her pussy, and was going to pull his pants back on, then decided to try her asshole. "No cherry there to break" he thought, and since his dick was so slick now, it might slide right in. He put some saliva on her asshole anyway, just for the hell of it, and put his swollen cockhead up to her tiny anus. The head of his dick was much bigger than her little hole, but he'd heard of others doing this, so he decided he would try it. Pushing harder and harder against the tight hole, it finally gave way and allowed his prick to sink deep into her rectum. The tightness of her ass was unbelievable, and almost before it started, it was over. Steve had to pull out almost immediately and came all over his own legs. He grabbed a rag and wiped himself off, then wiped off Carla's entire crotch area.
He pulled her panties and cut-off's back on, and sat watching her. Finally, after about 5 minutes, she slowly regained consciousness. It was a total of about 30 minutes that she had been out, and she seemed no worse for the wear.
"Ohhhhh, what happened?" she said groggily as she sat upright and looked around. Thinking quickly, Steve answered "You fell off the goddamnned chair you jerk! I thought ya killed yourself." "I what? I don't remember doing that.
Did I hit my head?" she asked in a confused tone. "Beats the hell outta me. I saw ya laying there and moved ya over to the mat. I was gonna call your Mom or someone if you didn't straighten out real soon." Steve said with a convincing tone of aggravation and and concern. "Geeez, don't say nothin to anyone about it. They'll think I'm on drugs or somethin. Just take me home ok?" Carla said as she got up carefully. Once standing, she rubbed her ass, "I think I musta fell on my butt real hard. It's kinda sore" she said with a mild grimace.
"I don't know what the hell ya did, but let's get your ass home and outta my way" Steve said shaking his head, and feeling a new sense of glee. He thought to himself as he started the car, "Man, this is the best investment I ever made in my life. I can't wait to try this out on a few of those stuck-up bitches at school." He drove off with Carla and dropped her off at home, watching as she walked up the stairs of her house with a gingerness in her step. "We'll hafta do this again" he smiled to himself and drove off with many plans in his head about who was next to discover his new found way with women.

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