"Harry, will you help me out?" asked a voice from his left, causing him to lose his concentration. The juggling balls all hit the ground. He was doing magic all the time here at home. His mum Lily always told him to practice for when Voldy got a body back. The blood ward magic helped protect them. But due to Albus's additions, it caused them to feel more about each other. He did it to strengthen Lily's wards, but it over did it.

He turned around to find his sister applying suntan lotion to her neck, her long black hair pulled up haphazardly to keep it out of the way. Her name was Eve Lilly Potter, and she was almost twelve months younger than Harry. She had long, smooth legs, a taut stomach, an average B size chest, and an almost-flawless complexion, with auburn shoulder length hair. Sunglasses were hiding the most brilliant, warm hazel eyes Harry had ever seen in his life. The ever-present smile on her face, always made Harry smile. She was his best friend, and it made him sad that she would be returning to Hogwarts at the end of the summer and he wouldn't. Like Harry was James with Lily's eyes. She was Lily with James's eyes. "Sure," he replied. "What do you need?"

"Just some suntan lotion on my back," she said, flipping over so she was laying stomach-down on the chair. Harry grabbed the lotion and squirted some on his hands, laughing when Eve squirmed at the feel of the cool liquid. He gently rubbed it in, amazed that her skin was so soft and smooth. He was unable to fully rub it in at the angle he was at. So he flung a leg over her and straddled her thighs as he rubbed the lotion into her lower back, not paying enough attention, to notice that his sister, had gone taut underneath him. Harry hummed as he worked his hands higher, delighting in the feel of how soft Eve's skin was. When he got to the middle of her back, she squeaked, "You can untie the string, if you need to."

Harry stopped moving for a second, not knowing what she was talking about. Then his eyes fell on the baby blue string holding up her bikini top and he felt an odd stirring in his stomach. He shrugged it off. It was his sister. It wasn't like it was going to bonk her, like his ex-girlfriend. So he gently untied the string, not noticing the shiver that went down Eve's spine. He began massaging his sister, while applying the lotion. He took in the sight of her completely naked back, the fact that he was straddling her, and lightly rocking into her firm arse as he lotioned her. That was when he noticed his John Thomas was at half-mast. He stopped completely. He was Gobsmacked, his thoughts ripping through him. Harry wasn't even close to being a virgin, it was odd that he had a semi-on from applying suntan lotion to his sister's naked back.

"Harry?" Eve said, her voice higher than normal. She didn't know what was going on, but the feeling of Harry's hands on her back was sending shocks of pleasure shooting from her core. Harry cleared his throat and began applying the lotion again, taking extra care not to rock his no raging boner against his sister's arse. He was also trying to will it away, though it was doing nothing but becoming a proper Vlad. They had been out of school for a few weeks, and it had been a week before, that Harry had an old fashioned shag with his ex, Ginny. He was not in love with her, she was wanting marriage, mainly because her mum was telling her.

Eve moaned, instantly making him rock-hard, when he applied pressure to the point right in between her shoulder blades. It was lucky his swim shorts were kind of tight. He hurried to finish, sweating by the time he was done. He hopped off his sister, almost swallowing his tongue, as Eve tied her bikini top back on. She smiled at him, though her face was a bit red. "Thanks, Harry."

"Yeah, no problem," Harry replied, his cock becoming painfully hard when his sister wetted her lips. "You going in?" he managed, gesturing to the pool.

Eve thought about it for a second before replying. "Sure," she said happily, standing up and stretching, thrusting her perky tits out. Harry stole a guilty peek at them, doing nothing to help his raging erection.

He ran and jumped in the pool, Eve following him. She kept her eyes shut, counted to ten, and said, "Marco!"

Harry grinned. She could never beat him at this game. "Polo!"

Though maybe she had been practicing, for she darted at him immediately. He just managed to dodge. "Marco!" she called.

"Polo!" Harry responded, jumping back out of her reach.

He went to go back again as his sister got ready to spring again, but he hit wall. Eve jumped and grabbed onto him, wrapping her arms and legs around him in an attempt to bring him underwater. Then she froze.

Her core was pressed against Harry's, allowing her to feel his thick, rock-hard cock through their thin layers. She blushed brilliantly but didn't move, just began panting. She had had sex only once before and was suddenly in heat as she felt her brother's ready erection. His hands were on the sides of her taut stomach, the wet, soft skin sending shivers down his spine. Her breasts were pressed against his chest, rubbing against him as she breathed hard.

"Eve?" Harry asked weakly, not making any kind of move to push her off.

"Harry?" she replied, teasing him.

He subconsciously moved his hands down to her arse and cupped it, holding her up and making her arch her stomach against his. They stared in each other's eyes for a few seconds, then Eve leaned forward and pressed her lips against Harry's.

He immediately broke it, feigning disgust because it was the right thing to do. "Gross, Eve, I'm your brother!"

She was blushing scarlet and unwrapped her legs and arms from him. But she still stood close to him, baps heaving as she breathed hard. Her fanny was absolutely drenched, twitching, aching for something to fill it. As she looked up, she could tell of the lust burning in his eyes. It was just instinct to pull away. She could break that.

"So you're telling me that it doesn't affect you at all if I do this?"

She untied her bikini top and bottom, allowing him to see her mostly shaven kitty, though the lightning bolt cut was distorted by the surface of rippling the water.

"Eve, what about mum?" he asked, throwing a nervous glance over his shoulder.

"Nice try, Harry," Eve responded, moving so her firm jubblies were pressed against his chest. "You and I know both know she won't be back home for another four or more hours." She sneakily untied his swim trunks. "Now, how about this?"

She pushed his trunks down to his knees and grabbed his thick willy, stroking it. Harry gripped her shoulders, meaning to push her away and failing to do so, from the pleasure he was getting. "You're thrusting your knob into my hand Harry!" Eve said in a sultry voice. "Are you telling me, that I don't affect you."

"Eve stop," Harry panted, his John Thomas sliding thru his sister's soft hand. "This isn't right, even if it feels fantastic."

"I need a willy" Eve panted out. "And yours is the only one available at the moment." Harry was looking into Eve's eyes as she pumped his shaft. "I need my muff filled, to be bonked." She said breathily.

"Bloody hell Eve, stop, or I'll..." Harry groaned, his balls tightening.

"You'll get off, all over my hand, imagining that your shagging my wet tight pussy?" Harry was panting as her hand was stroking him quickly. Then she stopped. "Good!" She said as she lowered her mouth over her brother's hard knob. She sank all the way down on it, gripping Harry tightly. She looked up at him through her lashes and began slowly bobbing up and down on his rigid John Thomas, lightly fondling his knackers with one of her hands, the other moving in tandem with her mouth.

Her soft lips and tongue repeatedly sliding down his shaft, Harry registered that he was actually getting a gob job from his sister, his balls tightened. It just felt so naughty, as well as exciting. Eve moaned and continued to bob as her brother's hot, sticky baby batter shot out of his knob, hitting the back of her throat. She swallowed it all, lightly sucking on the tip of Harry's cock as she pulled off of it.

Then she yelped as Harry pulled her up onto his lap to kiss her fervently. She moaned and pressed her body against his, her pert baps pressed against his chest. Harry stood up and Eve wrapped her legs around his waist, the tip of her brother's knob just brushing her engorged fanny lips. He carried her over to a side of the pool and set her down on it. Harry was teasing her lips with his own, his tongue darting around her mouth to coax her tongue to join the party. Eve spread her legs a little wider as Harry rubbed the length of his shaft against her slick quim, making her pant distractedly into her brother's mouth.

"Harry…" she moaned as he moved down and kissed and sucked her neck. The bellend was getting stuffed in; making her back arch, pulling her strawberry creams away, as he slowly pushed in the rest of his thick shaft into her. Then he was buried to the hilt inside of her, their eyes meeting making Eve's face flush even more. Her brother was thick and hot inside of her, his cock pulsing as it stretched out her tight, eager quim.

He slowly pulled out and pushed back into her, gasping as her walls seemed to try to pull him back in. She was so tight and wet, and the way she was thrusting her pert tits out while her innocent face was flushed with untempered lust made him want to abandon all his care and just shag her silly. He cupped one of her thrupney bits, as he slowly slid in and out of her, making her grunt every time their pubic bones met. Her mouth was hanging open, her eyes lidded. He groaned in pleasure when she wrapped her legs around his waist, granting him deeper access. Their sweaty stomachs brushed each other as Harry began pumping into his sister at a steadily faster pace, making her firm baps bounce and his ball bag hit her bum.

Harry began snogging her again as he shagged her. She regained enough composure to begin snogging him back, bringing her hands up to clench his shoulders as she whimpered into his mouth. He could see her orgasm building in her facial features and pulled off her mouth, letting her squirm under him as she looked at him with pleading eyes.

Unable to muster enough concentration to toy with Eve's bean, Harry instead said, "Does it feel good, Eve? Does it feel good when I slam my thick knob into you? Does it feel better knowing that I'm your brother, as I shag you silly?" She had no response except to squeeze her eyes shut. "Does it feel better knowing that you're about to come all over your brother's knob? Knowing that I'm going to pump you full of my baby batter afterwards?" Neither seemed to be coherent enough to realise that neither of them prepared to not be up the duff.

Harry kissed Eve hard, cutting off her scream of ecstasy as her big O tore through her, making her clench around his knob. Harry was unforgiving, continuing to fuck her as she coated him with her glistening gush. He impaled her a few more times, pumping his hot, ropy seed deep inside her body with each thrust. An aftershock hit Eve as her brother came inside of her, the bellend just brushing her cervix as his jizz poured into her. Then Harry was slowly kissing her as he rocked inside of her, each tiny thrust making his knob twitch and another spunk shoot into her body.

Eve's legs slowly straightened and went limp, allowing Harry to pull out of her and kiss and suck her neck while she recovered from her post-coital bliss. Her back arched when Harry pressed his thumb against her jewel, making a little of her glistening gush dribble from her fanny as another aftershock hit her. He could no longer thick of her bean as anything less than a jewel. "Damn, Eve you're so sensitive. Stay still, Eve," Harry said quietly, now kissing her sweet spot, making her stomach quiver. "You just relax." Seeing a bit of their mixed cum leak from her opening, he grabbed his wand and cleaned her up. He thought that it completely got rid of his spunk and her gush. It only did what was outside the womb, as he had spunked past the cervix.

He then gave her puffy lips a firm stroke with his tongue, making his sister gasp and arch her back. He spread her fanny lips and attacked her jewel, using parseltongue, making her writhe and moan underneath him. He pushed two fingers into her and hooked them, pressing against her most sensitive O spot. She began grinding her core against his face subconsciously. A thin sheen of sweat covered her body, her steamy breath coming out in pants as her brother ate her out. Suddenly a third finger was thrust into her, making her hips buck as another big O hit her.

"Harry!" she cried as Harry replaced his fingers with his mouth, lapping up the glistening gush that Eve's body was expelling. Harry picked up his sister in a bridal style, carrying her into the house. He used his wand to have the cloths and her wand follow them as he made it up to Eve's room. He ended the spell, their clothes landed on the floor before setting his sister on her feet. They began snogging softly, Harry backing her up and pinning her to a wall. He cupped one of her fun bags as he devoured her lips, moaning into her mouth as she lightly grabbed his hard shaft, stroking it to get it ready. Harry panted into the crook of her neck, their chests pressed together flattening her fun bags. Eve took this opportunity to talk dirty to him, repaying the earlier favor. "You like feeling your sister's soft hand around your John Thomas, Harry?" she said sultrily. "Knowing you'll be shagging me in a minute, buried in my wet quim?"

"Eve," Harry moaned, his hips jerking. The jerk made his trouser snake slip down between her legs, the top of his shaft pressing against her fanny.

"How long have you imagined shagging me, Harry?" Eve asked. "How many times have you sunked, thinking of my body?" She positioned Harry's dangly bits at her entrance, still stroking him softly. "Do you enjoy taking advantage of your helpless little sister, forcing more of your willy, into her than she can handle? Stretching her out muff and making her gush harder than she ever has before?" She slowly sank down unto Harry's huge willy, not stopping until he was completely sheathed inside of her. She grabbed his hands and placed them on her soft arse before wrapping her legs around his waist, her head falling back against the wall as Harry lightly nipped her neck. "Or maybe you enjoy the fact that your little sister can shag you all summer long, keeping you occupied? You can fill me with as much spunk as you want, bonk me as hard as you want, whenever you want." Harry started slowly thrusting into her, clenching his teeth. Her words were sending pleasure racing straight to his ball bags. "Because you're mine this summer, Harry. Your body, your willy, it's all mine."

Harry gave her a particularly hard thrust, making her perky baps bounce, her nipples skimming Harry's hard chest. "How do you know it's not you who's mine?" he asked, kissing the length of her exposed neck.

"Because I said so," was all Eve managed to come up with, lowering her head so she could kiss her brother while he bonked her against the wall, kneading her arse, as he banged her again and again. The sound of their slapping skin filled the room along with Eve's lower back hitting the wall behind her. She skimmed her nails down his lower abdomen as she moved her hand down to rub her bean, almost making Harry's legs give out. But he stayed upright, pounding his sister so hard that one of her framed photographs fell off the wall and broke.

"Eve," he panted against her mouth. "I can't hold off, I'm gonna..." Harry's legs gave out and he fell to his knees, making Eve slam onto his willy especially hard. She cried out and arched her back as she melted along with Harry, who was somehow still thrusting into her jerkily as he shot his baby batter deep into her womb for the second time that day. Her face was buried in the crook of her neck as her inner walls repeatedly clenched around his John Thomas, which was now covered in her juices. As soon as he had enough strength, Harry tiredly stood up and dumped his sister on her bed, making sure to clean all the gush that dripped on the sheets beneath her. Eve was panting on the bed, body flushed and hair plastered to her head in sweaty curls. Harry leaned down and gave her a deep snog, pulling her blankets up over her body, making sure to teasingly brush her strawberry creams with his hand as he did so.

He went to leave the room to go to his own and take a nap, but Eve softly said, "Harry."

"Yeah," he asked, turning around.

"Mum won't be home for another three hours," she said shyly.

"So?" Harry asked, his hand on the door knob.

"Why don't you come and sleep with me?" she asked, blushing furiously.

Harry swallowed, eyeing her pale, naked shoulder. "Yeah, sure," he finally said, climbing under the blankets with her as she scooted over. Eve grabbed his hand and pulled it over her stomach, making him spoon her. Harry gently rubbed her stomach, making her sigh contentedly. He kissed her bare shoulder and said, "'Night, Eve," even though it was still bright out. He waved his wand, casting the alarm spell for two hours forty-five minutes.

Eve's hand overlapped his on her stomach and she intertwined her fingers with her own, smiling as her eyes closed heavily. "Good night, Harry."

Harry smiled against her neck and closed his own eyes, both of them drifting into the wonderful land of sleep. Neither knowing that the other did not do the conception preventing spell. Her two eggs, which was why she was in heat were fertilized and she became up the duff from neither taking precautions.