Jealous Little Sis

Matt’s heart was racing and he worried he was going to be caught but then he heard Maggie’s voice and the things she was saying. He never heard her talk like this before it was very erotic even though so wrong. He got off the wall and peeled back through the crack. ‘Holy fuck!’ He thought as he saw Maggie with her legs spread wide open and her finger sliding in and out of her pink pussy.

She then freed her breasts and he couldn’t believe he was spying on Maggie while she pleasures herself. He was so fucking turned on but he couldn’t bring himself to stroke his cock while watching his teen sister. ‘Fuck it!’ He then started working to free his cock but as he tried undoing his pants the keys slipped from his hand and landed on the ground. “Shit!” He said audibly and he grabbed the keys and hurried into his room. “Fuck fuck fuck!” He exclaimed as he sat on the edge of his bed. She had to know he was watching.
 
Maggie was really going to town on her pussy and her little pink nipple when she suddenly heard the keys drop onto the ground. She had been building up to an orgasm for quite some time, and the sound of the keys? The idea that her brother had dropped them and had been watching his little sister play with her pretty pink, glistening pussy? That did it for her.

She arched her back and moaned loudly. "Oh, fuck YES!"

She thought she could hear her brother chanting the word "fuck" too, but she wasn't sure if that was just her imagination. Her pussy quivered a little after her orgasm, and it was tempting to just lay there and bask in the afterglow, but she gave a sigh and sat up. She walked out of her room and into the bathroom to wash her hands and fix her shirt and adjust her skirt a little bit. Then, she walked out of her room and began to call out.

"Matt? Are you here? I thought I heard you come in. Matt? Big brother?"
 
Matt was already horny so seeing his little sister playing with herself and her almost fully naked teen body really had him turned on. His mind playing images of him climbing into bed with her and sliding his huge cock inside of her and fucking her. ‘Come on that’s your little sister!’ He thought.

Then he heard his sister calling out looking for him. “I’m in my room!” Matt responded loudly so she would hear him. He took a deep breath trying to calm down and purge his mind of what he just saw. His cock was still hard but his pants had it running along his thigh and there was an outline of his thick manhood.
 
Maggie heard her brother call out that he was in his room. She grinned, walked to his room, and opened the door. She saw him sitting on the bed taking deep breaths and-

Ooooh. She noticed the outline of his thick manhood in his pants. Was he hard again? Was he hard because of her? She squirmed a little, then she sat down on the bed next to him and put her hand on his shoulder.

"Hey, are you okay? You look a little worried about something."

She paused a moment, spotting her keys in his hand. "Hey! You found my keys! Thank you so much."

She reached out to take them from him and give him a kiss on the cheek.
 
When Maggie walked into his room although standing there fully clothed all he could picture was her naked and on her bed fingering herself. She sat down next to him and he tried to act normal like he hadn’t just witnessed what he did.

“Oh yeah, you’re welcome.” Matt responded when she took them and kissed his cheek. “So what were you up to?” He asked like he had no clue what she was doing. “Also you wanted to watch a movie tonight?”
 
Maggie tried not to laugh when her brother asked her what she had been up to. As if he didn't know! She was pretty sure he had seen her while she was playing with herself. She managed an innocent smile, looking at him with sparkly, big brown eyes.

"Oh, I wasn't up to much. I was just thinking about how excited I am to get to spend the night with you for once. I feel like we don't get to spend much time together anymore."

She looked at him and spoke with him as if she had absolutely no idea that her brother had caught her masturbating. She gave an eager nod of her head.

"Yeah, I was thinking we could watch something later tonight after we studied for our classes. But I hope we can skip the action movies. I mean, if you really want to watch something with action in it, then oooooookay, I guess-"

She gave a bit of pout at him. "But I'd like to watch something that will help us unwind and relax. Especially since we've both been stressed lately!"
 
Matt laughed when Maggie had mentioned wanting to skip the action movies. “Alrighty fine, you can pick the movie out then. I’ll order us up some pizza and we can hang out like back in the day.” Matt said. He knew ever since Jessica came along he hadn’t been spending as much time with Maggie as usual. Matt felt bad and knew this night was just what the siblings needed.
 
Even after masturbating to the thought of her brother watching her masturbate, Maggie still found it difficult to focus on her studies. There was a part of her that almost wanted to keep movie night normal - just the two of them. No forbidden stuff. But the other, naughtier part of her really wanted to heat things up between them further. While she was studying calculus, she kept thinking about what movie she should pick out. Maybe a romantic comedy. Something with a nice, good sex scene in it but not too overly explicit that it would freak her brother out to be watching it with her.

The day waned on, and true to his word, her brother had ordered pizza for them to eat. It was a fairly normal dinner - figuring she should probably give him a break after what happened earlier today and for what she hoped to accomplish that night. Before watching the movie, Maggie suggested changing into their sleepwear in case they ended up falling asleep during the movie.

She had pulled on a nice, pink nightgown which wasn't transparent but the fabric was a bit on the thin side. Her hard pink nipples poked out from the fabric, so her big brother would be able to see the outline of them if he looked. And of course, she wasn't wearing any panties.

She curled up next to him on the couch with her face pressed against his arm when about ten minutes into the movie, she touched her brother's shoulder.

"Hey, can I sit in your lap? I'm feeling kinda cold. You must be a little cold, too, right? We could warm each other up."
 
After ordering the pizza Matt went and changed into his sleepwear like Maggie suggested. It would be nice to relax watch a movie and just fall asleep. He pulled on grey boxers and a tank top that was snug against his toned torso. When he saw Maggie in her nightie of course on of the first things he noticed was her small nipples poking at the fabric.

Once dinner arrived they ate it and then settled in on the couch in the living room. Matt wasn’t familiar with the movie his sister put on but he did say she could pick whatever one she wanted. The movie started and she instantly was against his arm snuggling against him. Matt let it slide since she was comfortable and didn’t seem to be trying anything suspicious. Then she suggested sitting on his lap.

“Uhh I’m not sure.” Matt replied sounding hesitant but he also wanted to give his sister what she wanted.
 
Maggie looked at him with innocent, big brown eyes. "Why not?"

She pouted her lips at him. "I'm cooooold," she whined.

"You don't want your little sister to be cold, do you?"
 
Matt rolled his eyes when Maggie went into her typical innocent and try to guilt you phase. He took a deep breath and let out a sigh knowing he was gonna regret this. “Alright fine..” he said and leaned back against the couch for her to move onto his lap.
 
"Yay!" Maggie grinned and climbed onto her brother's lap - already making sure to get in a good position where she could rub her bare wet pussy against the cock that was sleeping in Matt's boxers. She didn't start rubbing on him just yet, though. She didn't want him to think about making her get off of his lap. She leaned back, so she could rest a bit against his chest. She grabbed his arms and put his hands over her pink, nightgown-covered tummy. But the fabric was so thin, she could practically feel his hands on her skin.

She sighed in a content manner. "Isn't this better? Nice and warm."

She wasn't really paying attention to the movie since she'd seen it a couple of times, but she couldn't wait for the sex scene to pop up, so she'd have a bit of an excuse to start squirming on his lap. Maybe ask him a couple of questions...
 
When Maggie moved to get comfortable in his lap Matt felt her soft and warm ass cheeks rubbing and squishing against his groin and pelvis until she settled in place. He instantly regretted it feeling the intense warmth coming from her pussy. Through the thin fabric of his boxers he could tell she wasn’t wearing any panties. He focused on taking deep breaths and trying not to get an erection.

His arms were grabbed and placed around her so his hands were on her stomach. His right arm was on top of the left one and he could feel her breasts against the top of his arm. “Yeah it’s very warm.” He said mainly referring to her pussy. “What even is this movie?” He asked trying not to pay attention to her intimate parts touching him. On top of that she smelled so good.
 
Maggie had to resist the urge to squirm on her big brother's boxer-clad cock. Not yet... She'd wait for the sex scene to start up, first. She smiled.

"Oh, it's just some rom-com. Girl meets guy. Guy meets girl. They fall hopelessly in love, and a bunch of shenanigans happen that keep them from getting together until the very end when they finally get together just like you always knew they would."

She giggled at one such shenanigan happening in the movie - the girl had accidentally spilled something on her top, and the clueless guy was trying to help her dry it - basically ending up touching her tits in his awkward attempt to help.

"It's goofy. I bet even you wouldn't do that if I happened to spill something all over my shirt. Could you imagine trying to dry off my boobs like that? Pfft. You'd probably just end up spreading it everywhere, and then I'd need to take off my shirt."
 
Matt was issuing every ounce of self control to keep himself from getting erect. If there was an ounce of stiffening Maggie would feel it and it would be game over. Matt watched the scene where the girl spilled something all over herself. “Yeah this is typical in movies.” Matt chuckled. “That would never happen in real life. If I did something like that to you I’d just end up grabbing your boobs and letting whatever you spilled soak all over.

“That would land you a sexual harassment lawsuit these days.” Matt added with a chuckle. Anytime he laughed he felt Maggie’s perky breasts jiggling against the top of his arm.
 
Maggie's eyes widened in surprise a little when her brother basically admitted that he would grab her boobs. Unable to help herself, that particular prospect made her squirm on her big brother's lap - her wet, virgin pussy pressing against the thin fabric of his boxers.

"Oh? You'd grab my boobs, would you? And you wouldn't even dry me off? What? Would you want to see me without a shirt on? You wouldn't grab my boobies while I was shirtless, would you?" She tried to keep her tone teasing and not serious - hoping to avoid freaking her brother out but still maybe turn him on at the same time.
 
When Maggie started to squirm in his lap he felt the softness of her pussy mound pressing against his big manhood through the boxers. “What... no!” Matt stammered as he tried focusing on what to say while trying to not become erect.

“I was saying that if I were to do that I’d probably end up grabbing your boobs instead of drying off the liquid.”
 
Maggie giggled. "Oh, you mean on accident? Woops. Sorry, big bro. I thought you were saying you'd grab them on purpose. I should've known better. My big brother would never think about grabbing his little sister's titties, especially not when she's shirtless!"

Her eyes flicked back to the screen, and she squirmed a little more on his lap, hoping to slide the folds of her pussy along the length of her big brother's boxer-covered penis.

"Oh, oh! This is my favorite part."

The couple on screen were kissing rather passionately now, a frenzy and flurry of movement as they all but tripped over themselves trying to get to the bedroom. Maggie sighed, her perky, C-cup breasts rising, and then falling against her big brother's arm.

"Man, I wish someone would kiss me like that. Look at them go. Is sex really like that, Matt?"

She continued to squirm in her brother's lap.
 
This was another moment when Matt couldn’t tell if Maggie was being seriously innocent or had a hidden agenda with the way she was acting. “Yeah I was joking. Why would I really grab your tits?” Matt asked as he looked at the screen to see what his sister’s favorite part was. The couple on screen were making out like crazy and moving to the bedroom to have sex.

“This is your favorite part?!” Matt exclaimed feeling her shift in his lap. Matt swore he could feel the folds of her pussy pressing against his cock. As she squirmed Matt began to lose the battle and his cock started to grow erect. He knew it was his sister but the feeling and sensation of the warm, soft pussy against him and the soft breasts against his arm were very erotic and arousing.

“Uh sometimes. If the mood is right and you’re with the right person the sparks can lead to a passionate moment like that.”
 
Maggie paused a moment at that and stopped squirming in his lap. She turned to look at him with another pouty look.

"What do you mean by that? Is something wrong with my tits?"

Her eyes got big and wide and vulnerable for a moment. She put one hand underneath one of her breasts and seemed to heft it a moment. "You don't really think there's something wrong with them, do you? I mean, I thought they looked okay, but now I'm not so sure."

She sort of slumped, even as she continued to rub her bare pussy against the cock in her big brother's boxers. "I mean, yeah. I've never had sex before, so it's kind of... fun to watch, I guess?"

She shrugged her shoulders. "Is that so bad?"
 
Matt glanced down watching Maggie grab one of her breasts and heft it briefly. “Oh stop it! That’s not what I meant.” He said when she started to seem upset. “I’m sure your boobs are perfect.” He said to hopefully cheer her up.

“There’s nothing wrong with that at all. I just never thought a sex scene would be your favorite scene in a movie.” Matt added watching the scene heat up even more as they began losing clothes. Matt could really feel the heat coming from her pussy and swore her juices were seeping through the fabric and smearing along his thick erect shaft.
 
Maggie still made herself look doubtful when Matt told her to stop it and that he hadn't meant it like that. It wasn't that she wanted her brother to feel guilty. She just wanted him to pay attention to her... and at that moment, it meant paying attention to her breasts.

"You're not just saying that, are you? Are you sure there's nothing wrong with them?"

She picked up her brother's arm and placed one of his hands on her breast through her pink nightgown. His hand could no doubt feel the erect little nipple poking him. "Do they feel all right to you? You'd tell me if they didn't feel right... right?"

She was squirming so much on her brother's boxer-covered cock now, she was practically bouncing in his lap. She sighed a little.

"Well, I'm glad you don't think there's anything wrong with me liking a sex scene in a movie. It's just-"

She ground her little clit against Matt's shaft and tried to stifle a moan. "I've always wanted to know what sex feels like..."
 
Matt gasped and was caught off guard when Maggie grabbed one of his hands and placed it on her breast. The thin fabric of her nightgown was so thin he could feel her hard little nipple poking against his palm as instincts took over and he gently squeezed her breast. It was so soft and warm in his big hand. She was squirming so much in his lap he could feel her big ass jiggling against him while she moved as well as her pussy gliding along his shaft.

‘I fucking knew I’d regret this!’ Matt thought to himself. His cock was beginning to get wet from her juices soaking through his boxers. After a few seconds he realized he was caressing her breast. He then let go an pulled his hand away like any brother would have done in that situation. “Yeah they feel great alright?” He said softly

“One day you’ll meet the right guy and you’ll get to experience that with him.” His eyes looking at the screen watching the girl ride the guy. One of his favorite positions was when the girl was on top of him. Matt slid a hand down and grabbed Maggie’s hip to try and get her to stop moving in his lap.
 
Maggie really did end letting out a small moan when her big brother squeezed her breast. "O-oh."

Something in her voice seemed to brighten considerably after Matt told her that her breast felt great. "Really? You mean it? They feel great to you?"

She felt her brother's strong hand steady her hip, and she paused in her squirming. She could feel how thick and erect his penis underneath his boxers had gotten. It pleased her to no end to think that she had gotten her brother so hard for her.

"You know, my breasts feel kind of cold, too. I don't mind if you keep your hands on them. You know, to keep them warm. There's nothing wrong with a big brother keeping his little sister warm, right?"

She looked on the screen and saw how the girl was riding the guy in the movie. "You really think I'll get to experience that one day? Do you think a guy would like it if I did that to him? I don't know if I'd be very good at it or not."
 
Hearing the sexy little moan coming from Maggie’s mouth so close to him was so erotic. Matt knew he was in trouble when she asked him to keep her breasts warm and he didn’t say no. He stayed silent for a moment and then let out a sigh. His hand released her hip and slowly slid up her side. His other hand joined in on the journey up his little sister’s body until both of his hands grabbed her perky breast’s from the outside of her nightgown. “I’m just keeping them warm that’s all I’m doing. You better not tell Jessica.” Matt said.

“Yes guys really like that. I would love to be in that guys place right now.” He blurted out without thinking. The strength in the fabric of his boxers being tested as it held back his huge cock.
 
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