Harry Potter {Fem x Reader} (GxG)

Incest #1

Y/n is having problems with her sister hermoine

⚠️WARNING⚠️: INCEST. CURSING.
G!P Y/N.

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At 15, y/n stood just over 5'7 feet. She was slim, but had well defined arms, abs and legs from quidditch and swimming in the black lake. Her years as a quidditch player and swimmer in hogwarts had done her good despite only being a beater.

Hermoine woke up around an hour later in her separate room from her sister y/n seeing that both of them are prefects even at such a young age at 8:30am. All her asshole of a sister did was mope around, thanks to her recent break up. The idiot dated that whore Fluer (P.S. I don't hate Fluer) delacour during the tri-wizard, fell for her Vela charms and got what she deserved, she thought.

She had breezed through the school with straight E's and all. Hermoine may be just 14 but she already has a lot of boys and some girls fall on her heels. Her slim figure, perky b-cup tits and round ass helped with that. She had chocolate brown hair, like her sister. Her's ran past her shoulders while y/n's is a bit longer.

She pulled herself out of bed and walked out to their mini kitchen near the bathroom and grabbed a bagel for breakfast. Since it's Saturday no rush needed.

On her way to the living room, she heard the running water coming from the bathroom before she saw the door was open. She peaked in, holding her peanut butter covered bagel like a sandwich. Her eyes went wide as she saw her sister through the clear shower curtain. Water dripped over her chest and abs. She grabbed her thick, 9 inch cock, her eyes were closed.

She watched her play with herself. Her hand memorized her as it moved up and down, y/ns fingers tightly gripping her cock. Her moan of "ahh...Fluer" pulled hermoine from her daze. She felt aroused, despite herself.

She stood for a while, watching her sister, before pulling herself to her senses.

It was time to antagonise her.

"Shut the fucking door and forget about your favorite cheating slut!" hermoine said as she slammed the bathroom door shut.

Y/n left the shower 15 minutes later and confronted her sister in the living room.

"What the fuck was that for," she snapped angrily.

"You were jacking off in front of me" hermoine said dryly, "I had to protect myself."

"You could have just shut the door," her sister hissed back.

"You could not be obsessing over Fluer right now," hermoine said laughing and stepping closer to her.

She stared deeply into her eyes, smirking, knowing she her sisters weak spot. Their faces inches from each other.

"How long where you there," y/n muttered, infuriated.

"Long enough," hermoine said walking to her room, laughing.

Y/n walked outside and down the hall to the kitchen, she passed her sisters room, noticing the door was ajar. She looked in to see her sister topless in front of the mirror. She was smiling with her phone in hand(let's pretend cellphones exist), ready to send a picture to some guy or girl.