Note: This is my first story, so I hope you'll forgive me my mistakes. Furthermore, my first language isn't english, so I hope I didn't make too many silly mistakes.
Davin got home from school early, looking forward to a afternoon of nothing to do, with the house to himself. He was living with his mother and sister Jessica who was just over a year older than him, soon to turn 20.
He was an average guy of normal height, slim and sporty yet not muscular. He was rather handsome in his way, though it usually took a second glance to notice it. That, coupled with his shyness, ensured that he was still a virgin, in fact he never even had a steady girlfriend. For years he's had a crush on Angela Meyers from his class, but she never even noticed him, so he spends a lot of time fantasizing about her. In the last two years her body has turned into that of a stunning young woman, with rather big breasts, full lips and oh so beautiful hips....
Coming home he put his bike in the driveway and made his way up to his room, daydreaming about Angela. As usual, he found his crotch responding to his thoughts and soon he had a massive hard-on in his pants. Since he was alone at home, he decided to slip out of his confining jeans and have a bit of fun with himself, while entertaining thoughts of Angela's nude body. Laying back on his bed, he stripped his tight shorts off to and started to slowly stroke his cock. He always had felt a bit self-conscious about his cock since it's not like the 9'' they constantly talk about on the internet. his was a rather average, stopping at just under 7'' when fully erect. Still it was a well-shaped one, with a full, glistening head and a slight curve up. Lost to his thoughts he stroked happily away, eyes closed, enjoying the sensation.
Jessica was not in a good mood, as was often the case as of late. 2 Months ago she had broken off with her boyfriend, after she found out that he had slept with that school-tramp Lisa. She had been together with him for nearly two years, and the break-up hurt a lot. Not feeling like working she took the afternoon off and headed home. She saw her brother's bike in the driveway, happy to have someone to talk to. She got along great with Davin, they could talk about anything with each other and had helped each other a great deal when their father had died 4 years ago. She headed for his room, looking forward to talk to him about her sorrow, but when she came closer she heard low grunts and a distinctive fap-fap sound coming from his room. Being no angel she of course knew what that meant, and although she knew she should turn around and head for her room, she went ahead, intrigued to get a peek of what was happening in his room.
The door was standing ajar, so all she had to do was peek in, where she saw her brother, wearing nothing but a t-shirt, lying on his bed, eyes closed, hand on his hard cock, pumping away with abandon, not noticing anything around him. Despite herself Jessica found her body reacting to the view. She hadn't had sex since breaking up with her boyfriend, and her libido had been all but dead in the meantime so she hadn't even masturbated since then. Her sex drive awoke now with a roar, her panties soaking almost instantly, her cheeks getting red. She knew she shouldn't watch, but couldn't stop herself. Davin pulled his shirt up, revealing his upper body, he arched his back, pushing his hip in the air when a stream of fresh cum shot out of his cock, landing with a splat on his belly. Jessica almost came right there on the spot, without even touching herself, so before Davin could get up, she quickly hurried back to her own room, closing the door softly behind her.
After having come, Davin slowly regained his senses and started to clean the cum off his belly. He pulled up his tight shorts and decided to get a quick snack from the kitchen before checking out his emails. As he headed down the corridor he noticed Jessica's door being closed, and he was sure it was open before. Had she come home while he was in his room? When he hadn't even bothered to close the door? A quick flush crept to his face at the thought. Trying to make sure he was not imagining things he peeked into her keyhole to see if she was there. Nothing prepared him for what he was seeing there. His sister was sprawled on the bed, legs spread wide, panties around her ankles. Her hand was buried in her mound, while the other was gripping her breasts. He knew that Jessica had rather full breasts, but seeing them out was another thing altogether, they easily rivalled those of Angela. His cock responded instantly to the view, although guilt crept up at him as he noticed. Already he was standing at full attention in his shorts. His sister was massaging her pussy furiously in the meantime, soft moans escaping her lips. Mesmerized Davin just couldn't bring himself to turn away watching and listening as she got ever more furious, her moans becoming more frequent and louder. His cock was throbbing, bulging the shorts wide. Not too long after she arched her back, a muffled scream of pleasure escaping her as a orgasm ripped through her body. Seeing his sister cum, his cock couldn't hold itself back either, pumping yet another load of cum right in his shorts. Embarrassed he turned away, thinking he'd first need a shower before heading down again.
He entered the shower, stripped down and let the cool water wash over him. What had just happened? Had he really just come to the sight of his naked sister masturbating? Guilt crept up again, stronger than before, but underneath it there was also a strong thread of lust. His sister really had a heavenly body, there's no denying that.
Jessica remained lying on her bed for a few minutes, totally out of breath. The sexual release has left her relaxed, thoughts of her boyfriend pushed out of her mind for the time being. After a while of catching her breath she put on her tank top and panties and decided to go for a shower to wash the sweat and cum off her. When she got closer to the shower she heard that the water was already running, so her brother must have been faster than she. Feeling cheeky she went in nevertheless, pretending to brush her hair, while stealing glances at the shower through the mirror. The glass of the shower was milky, so she could only make out his silhouette, which was a pity.
Davin turned off the water, oblivious of her sister's presence, and got out of the shower; where he stood like petrified at the sight of her in her tight tank top and panties that seemed to hug her ass perfectly.
'oh, didn't hear you come in' - he stammered, quickly wrapping a towel around his lower body.
'Yeah, I'll just be minute' chirped Jessica happily, eying his body before he could cover himself, resting for an instant over his limp cock, smiling to herself.
Embarrassed, Davin quickly hurried out of the shower and headed for his room. As soon as he was there, he realized that he had forgotten his cum soaked shorts in the shower. When he got back in the shower he ran into a startled, naked Jessica, who had just put some shaving foam on her pussy to get it all smooth again.
'Oh, uhmmm, sorry, uhhh' was all that Davin could manage before turning back, cheeks flushed with embarrassment. Seeing her brother all flustered, Jessica grinned a wicked grin, delighted at his embarrassment. She knew that she looked good, but it felt good having her brother's eyes linger on her tits and pussy for an instant before turning away, knowing that even he thought her attractive.
When she finished shaving she realized his clothes still lying on the ground next to the shower. Intending to put them in the hamper she picked them up; and stopped dead when she felt a slippery fluid on her fingers. Taking the finger up to her face, she noticed the familiar smell of sperm. With a streak of wickedness she let her tongue slide out her mouth and touch the finger briefly, tasting his cum. It tasted familiar, similar to that of her ex, yet different and somehow better. She felt the heat starting up again between her legs, but she forced herself to stop and headed for his room. After knocking she entered, hips deliberately swaying, his shorts on her finger.
'You forgot something in the shower' she told him with a wide grin 'you know, there's such a thing a tissues right?'
Davin's face instantly flushed crimson, he tried to say something but nothing but incoherent stammering came out. With a sly wink she threw the shorts at him, turned around and glided out of the room.
Davin sat petrified on his bed for minutes. Not only was he terribly embarrassed about his sister finding out he had jizzed in his shorts, he was at the same time aroused again at the way she had walked in, her challenging grin. He decided he better go talk to her, clamed himself, put on his jeans and went over to her room. Knocking he entered finding her lying on her belly, immersed in her book.
'Hey jess' he called out 'about before, ummm, I just wanted to errr apologize, that was really kinda embarrassing and I really should have removed them but you when I remembered you were already, err, shaving, so I...' he trailed off
'Don't fret it' she instantly replied with the same wicked grin 'it wasn't exactly a surprise to find out that my little bro is turning into a man, with all that comes with it' glancing meaningfully at his crotch.
