Big Little Sister
Copyright© 2025 by OmegaPet-58
Chapter 7: Nervous Again
Young Adult Sex Story: Chapter 7: Nervous Again - Sisters Liz and Nat enjoy an above-ground backyard pool, inviting nerdy next-door neighbor Dan to join them. Nat is older, gorgeous, and the high school social queen, while Liz is heavy and feels overlooked. Dan, attracted to both sisters, thinks he has no chance with Nat, and soon he's partnered with Liz. Dan and Liz's deep intimacy is encouraged by Dan's single (and swinging) mother and the sisters' father. A simple teen romance explodes into lusty combinations.
Caution: This Young Adult Sex Story contains strong sexual content, including Ma/Fa mt/ft mt/Fa Fa/ft Mult Teenagers Consensual Romantic Lesbian BiSexual Heterosexual Fiction Humor School Sharing Incest Mother Son Sister Father Daughter Group Sex Swinging Black Couple White Couple Anal Sex Analingus Enema Exhibitionism First Flatulence Massage Masturbation Oral Sex Sex Toys Voyeurism BBW Big Breasts Hairy Public Sex Size Nudism Illustrated
The sisters and I were up in Liz’s bedroom with the Barbies. “Liz, I’m not sure this is a good idea. When I first started coming over here, you didn’t like me looking at Nat’s body. I felt guilty over my reactions.”
“You mean, like that one?” Liz pointed at my hard-on.
“Exactly.”
“I can’t be any more clear with you, Dan. I’m giving you the OK. You have my permission to make her explode with all of your ability. I want my sister to enjoy all the wonderful feelings that I have had. Just like you did with Laura. You made her crazy, even though her body is slim—different from mine. Even though her sexual orientation is different.”
“Liz, would you mind?” Nat interrupted. “Instead of discussing, I thought Dan was going to massage me.”
I said, “Sure, get up on the mattress, and I will begin with your shoulders and back.”
I figured that a massage wouldn’t obligate me to go further, although my cock betrayed exactly what her supple body was doing to me. Nat’s tense muscles resisted me, and I tried to find a calm balance between firmness and softness. Soon, I was hearing the same cooing and groaning from Nat that I heard when I massaged Mom and Liz.
“OMG, Liz. Dan could pay his way through college doing just massages like this. You massage Irene?”
“For a few years.”
“Your mother has a lot of self-restraint, Dan. It’s playing with fire, but can you work on my butt? Please?”
Instead, I shifted my hands down to her upper and lower legs and feet. She started to complain, but then her moaning resumed. Liz smiled when I looked at her.
“Dan knows what he’s doing, Nat.”
I didn’t make her wait long before putting my hands on her bottom. Natalie’s ass was probably close to an ideal shape for a young model, well-rounded and firm.
“You’d have a great ass, Natalie, if it weren’t for all those hairy moles and bright red pimples.”
“WHAT?”
“Nat, he’s teasing you. Your butt is perfect. Dan, don’t be mean to my sister.”
“Sorry, Nat. It IS perfect.” Dodging the next bullet, I added, “However, Liz has the ass I prefer.”
“Smooth, Dan. I’m all warmed up and juicy. Why don’t you let go of my ass and fuck me?”
Liz and I shared a look, and she nodded her head. I was still nervous, but there wasn’t any point in arguing further.
“Alright, Nat, I’ll be the missionary, and you’ll be the convert. Or something. Liz, maybe you should go look that up for me while we’re busy.”
“Daniel! Like I said, I’m staying right here to supervise. Show Nat what you can do.”
“Yes, mistress.” Liz rolled her eyes, while Nat busied herself rearranging her body and spreading wide her slim legs.
I used the head of my cock like a paintbrush, stroking up and down through the gap between her inner lips. Using her moisture, I fitted my tip to her vaginal entrance and pushed my way inside. I heard a sharp intake of breath, and a big smile split Nat’s face. So far, so good!
As much as I enjoyed doggie style, I loved being able to look my partner in the face. Satisfied that Nat was still comfortable with most of my length inside, I enjoyed several in-and-out thrusts while keeping some of the root still out in the air.
“Nat, I forgot something.”
“What? No, you don’t need a rubber, Dan.”
“I forgot that I like to kiss first. May I?”
“Yeah, I’d like that. Mnph!”
I kept up a smooth thrusting while we kissed, open-mouthed, and with active tongues. Nat’s approach was forceful, and she hooked her hand around the back of my head to keep me in place while she probed my mouth. Finally, I pulled back.
“Wow, Nat! I’m not all the way inside your pussy; should I go deeper?”
“Fuck, YES! Bang my sloppy cunt!”
“You asked for it.” Only Liz seemed to be sometimes shallow inside, in my vast experience of three! Watching Nat’s enjoyment ramped up my pleasure, and we were making a damp slapping noise as our pelvises crashed together again and again.
I noticed some differences, though. My brain was still chattering away while we fucked, different from Liz and Laura. I was noticing little differences. As wonderfully warm and wet as Nat’s pussy was, it was much looser around my cock compared to the first two girls. I felt peak physical pleasure, but the extra “sting” of emotional intensity wasn’t quite there. In the back of my mind, I thought of the guys who’d been here before me and that little bit of worry that I might not come across well.
Still, Nat showed every outward sign that I was giving her exactly what she wanted, and I was getting close, too.
“Nat? Splatter your skin, or inside?” I asked.
“On my tits! Ooh, I’m, I’m coming!” Nat stiffened, cried out, and clutched at me. I froze in mid-thrust, feeling her faint pulsations inside her body against my shaft. I gritted my teeth until they subsided, then pulled out, stroked three times, and spewed over her nipples as requested.
I had just enough self-control to topple away so my weight wasn’t on Nat’s body. Through half-lidded eyes, I saw Liz come close, lick some globs off her sister’s tits, and then dribble them into Nat’s mouth.
She was still panting after her orgasm, but Nat managed a quiet “mm” of satisfaction. All three of us rested for a minute or two.
“Liz?” asked Nat.
“Mm?”
“I think I proposed Mondays and Thursdays for me with Dan, and you get all the other days. How about it?”
“Natalie, no. In the first place, he’s MY boyfriend, so I have dibs. In the second place, Laura claims him after me and before you. In the third place, it is entirely up to Dan, not us, where he chooses to wield his mighty sword. Finally, dear sister, you need to stop fucking around with chumps who don’t deserve you and find your own Dan.”
“But, Liz...”
“I don’t want to hear it. You have every advantage possible to find a good man, starting with your looks. You can, and should, be selective. Let me say just one more thing. I’ve always seen Dan as being very handsome, and later discovered he was hung. Even so, I would not have done a single thing with him romantically or sexually, except for one crucial thing.”
“Um, thank you, Liz, for the compliment, but what encouraged you? What was it about me?”
“Simple. You didn’t believe you were handsome. You were NOT impressed with yourself. That’s a deal-breaker. Natalie, if a guy thinks he’s entitled to your affection for whatever reason, he’s a mistake. It’s as simple as that.”
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