Penetration

My name is Dudley Vernon Dursley. 15-year-old high schooler and local troublemaker on Privet Drive. I am currently living in number four with my mum, Petunia, my dad, Vernon; and my freaky cousin, Harriet Potter – a witch.

"I am exhausted…"

"Dudleykins, welcome home."

Dudley look up to see his mother standing in the hallway. He silently wandered what his dad found so appealing in his mum; she was a horse face woman and sickly thin. Though his father was no prize either looking like a blown-up walrus.

"I am home."

"Do you have fun with your little friends today?"

Dudley frowned; he was 15 for crying out loud. She didn't need to treat him like baby.

"Yes… I am tired. I am going to bed early." He said dully as he began climbing the stairs to his bedroom.

"Rest well, then. I'll be up later with something for you to eat."

Dudley just grunted and entered his room, slamming the door shut, and collapsing on the bed to sleep. However, there was banging and a lot of thumping echoing above his head, keeping him awake.

"Damn, they're still making noise today…"

Vernon and Petunia Dursley was having their attic re-done as the floorboards were becoming too rickety and fragile, Petunia was worried the ceiling would collapse on them in their sleep. Dudley knew that currently his parents and cousin was sorting through what was stored up there before the builders came.

Growling Dudley got off his bed and marched to the door leading to the attic, banging on it harshly.

"Oi! Keep it down will you I am trying to sleep! You always make so much noise!"

The door opened, revealing a dark-haired girl with bottle green eyes. Her skin was fair; and she wore a pair of orange short shorts and a mini, white tank top, that was barely holding her breasts in. It was his cousin Harriet Potter.

Dudley couldn't shop himself from shamefully and lustfully gaze at his cousin. She was beautiful and downright sexy. He often fantasied having her lips around his cock, sucking it like a lolly and drinking his cum; while other times he fantasied her riding him as he pounded her into oblivion. He sometimes wondered if this is what his late aunt Lily Potter Nee Evans looked like when she was alive, as he never got the chance to properly meet her.

Vernon once told him that he got together with Petunia in hopes of banging her sister Lily; but never got the opportunity. Over the years since his cousin began living with them and hit puberty; he noticed Vernon watching Harriet closely with a lustful leer – no doubt he wanted to fuck her like he did Lily.

"I-I'm sorry, Dudley. I didn't mean to wake you, aunt Petunia wanted me to finish this by the end of the day."

So… So cute… She was just too naïve and innocent; and with that body of hers, just makes her more desirable to fuck.

"Tsk. It doesn't matter. Just keep it down from now on."

"Ok Big D."

She closed the door. While I still think my cousin is weird, I don't bully her like I used to; especially after she saved me from what she and Petunia called, a Dementor.

Returning to his room, he slammed the door shut before locking it and lying back onto his bed, gazing up at the ceiling where his cousin stood above him. The banging continued but was notably softer than before.

"finally. I can't do anything else…"

Closing his eyes, he began picturing his cousin. Her white tank top riding up, exposing her glistening stomach covered in sweat. Her nipples hard and pocking through the fabric; indicating she wasn't wearing a bra underneath. Nor any panties. Her short shorts tightly cupping her firm ass.

Dudley grinned and pushed his trousers down, letting his throbbing 9-inch cock out and rubbing his hand up and down. Jacking off at the image of his sexy cousin.

There was a loud creak above him when suddenly the floor went above him. Dudley jumped in shock as his cousin fell through. Her legs dangling helplessly as her top half was still stuck in the ceiling.

Dudley looked up; she was hovering over his head. Her… Her… Her… Her shorts are too cute! Neither notice that her struggling legs was stretching her shorts, and a tear began to form at the base that covered her pussy.

"Don't… Don't look!" She cried in fright. "Dudley, help me!"

Hesitantly, Dudley raised his arms to catch her. Only for his face to land face first into her covered pussy. He wobbled as he tried to control his balance without dropping her.

"No, that's not true! I'm stuck!" She wailed.

How sweet. My tongue is moving by itself… his tongue pushed through the hole in her short shorts and thrusted into her pussy, eating her out.

"Damn it, don't do that!" She moaned, screaming as she finally got free. Her top flying upwards and her breasts became exposed.

The two fell onto the bed, Dudley first and Harriet on top of him. Moving to lift herself off, Harriet gasped and moaned. The two looked down and stared in shock.

He just penetrated me… Harriet gasped at the foreign intrusion.

The hole in her short shorts had completely tore the fabric in two; allowing for Dudley's free cock to slide nicely in.

That… That sucks! It just entered inside, as if nothing had happened! Dudley gasped and groaned as her tight walls squeezed his cock. I… I can't control myself…

His hands grabbed her exposed breasts and began squeezing and massaging them. Harriet moaned. It's soft… He drummed his fingers and increase his assault of her breasts. Making her moan louder and louder.

"My nipples! No…" She moaned. She gasped as he latched his mouth onto one of the pink buds, sucking it like a baby; whilst continuing playing with the other.

Harried gasped and moaned. Clutching the bed sheets as a wave of pleasure washed over her. She was enjoying it.

Falling forward, Dudley released her nipple and began kissing Harriet, pushing his tongue in and sucking on her own. His hands moved to hips and began lifting her up and down; thrusting his cock in and out.

I am having fun… Dudley panted as he watched Harriet bounced on top of him. Groaning as each thrust had her walls cling to him tighter and tighter.

"Dudley, Stop… Aaahh!... Aahh!" Harriet moaned. "It's pleasant." She moaned as she began to enjoy as much as he was.

Harriet began moving on her own and moved her body to match each thrust he made. Harriet and Dudley began increasing their thrusting as the pleasure continued to build; wanting to enjoy it more and more, without stopping.

Harriet… This girl is too good… Our movements synchronized! Harriet kissed him again, moaning into his mouth as his cock continued to penetrate her.

Faster and faster they went. Dudley watched memorised as her breasts bounced up and down in his face, until….

No! I ejaculate! Dudley thought in despair that it ended too soon. His cum shooting up into her womb. Harriet arched backwards, screaming in pleasure, thrusting her breasts into his face, as she felt his cum enter her – sending her over the edge.

"I-I'm cumming, Dudley!" She cried as she had her first ever orgasm.

The two panted, looking at each over in the eye. Freezing as a knock at the door, broke their lustful trace.

"Dudleykins. Mummy needs to pop out for a few hours; I won't be back until late tonight. The same with your father. I've left something for you in the kitchen. Have the freak heat it up for you, and make sure she finishes the attic." Petunia called through the door before leaving and walking out the house and locking the door behind her. Leaving the two in the house, all alone.

Dudley gazed up at his cousin who was looking up at the hole in the ceiling with a thoughtful look.

"Dobby!"

Who was Dobby? A pop echoed in the room and Dudley turned his head to see a small pink creature with big ears and wearing a knitted sock as a hat, and a dishcloth as a shirt.

"Mistress called Dobby?"

"Yes Dobby. I need you to fix the ceiling and clear the attic for me. I already boxed everything; I just need you to move them all downstairs by the backdoor. Thanks."

"Yes mistress." With the snap of his fingers, the creature – Dobby – was gone and the ceiling was fixed good as new.

Dudley gasped as Harriet began bouncing on him again.

"Harriet?" He asked breathlessly.

"Ready for round two, BIG D?" She whispered seductively, pulling her tank top off and sitting naked on him.

Dudley leered and rolled themselves over with him on top. Wrapping her legs around his waist; watching as she beautifully thrashed under him as he pounded her into the mattress.

The night of their forbidden pleasure had only just begun.