Wake up Rachel with a light fuck

You wake up the next morning earlier than usual. Probably because you're so excited to wake up in a world where you have complete power over women and you can do whatever you want to them.
Speaking of which, you don't even brush your teeth or shower before sneaking into Rachel's room, and you find Rachel fast asleep face down on her bed. You pull the blanket down, revealing her petite but very fuckable ass. You grope and grab her cheeks, but she doesn't wake up. You pull her pink panties to the side and see her two tight holes, which you spit on and get slowly warmed up with your fingers.

Before shoving it in, you measure up your cock against her pussy. With how long your cock is, you'd easily be making it halfway up her stomach and damn near her lungs.
It's the perfect sexual combination: your lil sis is a petite girl, and you have a massive cock that can wreck her.
You slap your cock against her soft ass a couple times before putting it inside her pussy and sinking in all the way. Rachel mumbles a bit but still sleeps.

Fuck going slow, you think, and you start fucking her faster and faster. As you do, the bed rocks and Rachel starts moaning in her sleep.
At this point, you're really pounding into your little sister. Rachel moans as she wakes up and realizes what's happening.

"Hey, what's-- HEY! What the fuck, bro? What are you doing, get off of me!" Rachel says, and starts squirming underneath you.
"Heh, no fucking way. I'm your big brother and I get what I want in this house," you tell her.
Rachel tries getting away from you, but your weight keeps her pinned down on the bed. "Ugh, you're so annoying. Stop it, I'm serious."
"Absolutely not, Rachel. You know that your pussy and throat's too good to pass up. You might as well get used to it because I'm gonna keep using you a lot more around here."

She looks at you and rolls her eyes. Then she picks up her phone and starts scrolling, as she keeps very determined to not show you that she's actually really turned on, but her wet pussy betrays her.
You laugh at her. "Don't pretend sis, I know you like it. Look at how wet you are."
Rachel looks back and pouts at you because she can't deny it. "I fucking hate you dude, you know that?"

You mount your little sister and mercilessly jackhammer her cute little teen butt.

"FUCK sis, your tight little pussy feels so good, FUCK!"
You slap her phone away and pin her arms behind her back, thrusting hard and fast into her. Rachel can't hide it much anymore, and she moans as both of you are brought to climax. Her wet insides gently spasm and milk you as you cum deep inside her. You look down and see her tiny asshole clenching and unclenching as she cums hard with you. You empty your balls completely into her tight pussy for your first fuck of the day.

After you pull out, you wipe your cock on her panties to clean off, and then you put her panties back from when you pulled it to the side. Her pretty pink panties immediately get soaked in the creampie dripping out of her pussy.
"Bro what the fuck?! Now I have to clean those! Get out!" Rachel throws a pillow at you as you laugh your way out of her room. It's already so much fun having a cute little sister you get to fuck around with.