Some late night blue ball relief from my friend’s little sister [MF]

I’m sitting at the kitchen table in the dark, the backlight on my e-reader set low. The cabin we’re renting, and the forest it’s in, have long since quieted for the night. Occasionally, I’ll hear a door open and footsteps creak down the hallway to the bathroom.

But this time, they don’t stop there. My curiosity is piqued.

Light footsteps, a halting, uncertain pace. They get closer, closer. I watch the kitchen’s archway, wanting to know who else is up at this hour.

I see an oversized white hoodie, nearly effervescent, reflecting all of what little light there is. And behind it, a massive quantity of long, dark hair, draped down in messy strands.

An instant giveaway. It’s Harper, Jack’s sister.

She crosses from the entry to the opposite wall, where the counter and sink are, not noticing that I’m here. I don’t want to frighten her.

I say quietly, “Hey, Harper.”

She jumps, gasps, twists around, pulls her hand to her chest, all at once. “Oh my god! Brent, you scared me!” Despite being startled, I know she’s not mad. I’ve never seen her in a foul mood, never heard her speak harshly towards anyone. I blush with shame, she’s not the type you feel good about playing tricks on.

“I’m really sorry,” I say, “I was trying to avoid exactly that.”

“It’s ok, you didn’t mean to,” she says, already calming, “Anyway, what’re you doing up? Is something wrong?”

“Couldn’t sleep,” I say, “But that’s normal.”

“Brent! Jack said we’ve got an early morning!” She sounds genuinely concerned for me. Jack coordinates these trips for his friends, renting cabins and campsites, getting us all out into the backcountry, fishing, kayaking, hiking, just enjoying the outdoors. This is the first time he’s brought Harper.

“I never need much sleep. But what are you doing?”

“Just getting a glass of water.” She turns her back to me, facing the cabinets. Her sweatshirt is long, and the lighting is very dim, so I’m not quite sure, but I think I can see the bottom of her ass below the shirt’s hem. Call me a pervert, but I pop up, alert, instantly intrigued. She continues, “Do you know where the cups are?”

“Uh, cabinet to your left, top shelf.”

She stretches on her tip toes, reaching up, and I stare. Either the light’s playing tricks on me, or she’s not got on any underwear. And her ass, I’m entranced, it’s firm, perfectly round. I had no idea.

“Ugh, Brent? I can’t reach,” she says, “Can I borrow your tallness?”

“Sure.”

Harper and I haven’t ever spent any time alone together, we’re not close. I know her from when I would hang out at Jack’s house, and through school. She’s cute, but in an innocent way. No, her defining aspect has always been her upbeat, optimistic personality. To me, she was simply Jack’s sister, a couple grades behind us in school, an easy-going sibling and nothing more

When he told us she was coming on this trip and bringing her friend Stacey, it was Stacey, that tightbody cheerleader with tits the size of grapefruits who all the guys, Jack included, made comments about. It was nothing against Harper, it was just Stacey carried herself in a way that made you think about fucking her, Harper did not.

But that cute little ass…

As I cross from the table to the cabinets, all that history flashes through my mind, recontextualized in light of that amazing round butt I just glimpsed.

Basically, I’m hot for her, but I don’t have a play. So I’ll just have to be direct.

“Here,” I say, grabbing a plastic cup. I fill it with water from the fridge spigot and hand it to her with a grin.

“Thanks.” She takes a sip, looking at me over the cup’s brim. She spies my smile.

“Harper, are you not wearing any panties?”

She chokes, spitting the water back into her cup. “What?!” She coughs.

“I just, you know,” I shrug, “Thought I saw–”

“You saw?!” She sounds horrified, pulling down on the sweatshirt hem as if she could undo it.

“Don’t be like that,” I try to reassure her, “It was a nice view.”

“What?” She’s wide-eyed, aghast, but I can see her face soften, confusion mix in. “Really?”

My smile twists into a flirty smirk, and I hope the effect isn’t lost in the dark. “Yeah. Nothing to be bashful about. You’re a cute girl.”

She hesitates. She’s uncertain, unsure how to proceed. Oh well, swing-and-a-miss.

“Sorry if I made you uncomfortable,” I say, “Go back to bed, I’ll forget I saw anything.”

She doesn’t move. Doesn’t say anything. Just looks at me, eyes dark and unreadable.

I continue, “I’m not trying to play games, I’m being sincere.” It’s the truth.

“No,” Harper says, “Don’t do that.” She looks at me, lips parted, speaking with a nervous waver. She turns back to the counter and leans over like she was before. Her sweater rides up. “You can touch me, if you want.”

Huh, ok.

I grab her butt. Her skin is cold. I squeeze, feel her tight muscles. She whimpers. I’ll warm her up.

“You really think I’m cute?” she says, breaths quick and shallow.

“Harper, you’re completely cute. There’s no question.” I squeeze again, more firmly, and she pushes her ass into my hand. I let my fingers wander, explore her butt’s fantastic shape, then drift down, between her legs. Her heat radiates against my hand.

She stiffens.

“Should I stop?” I say.

Her voice is low. “Nobody’s ever… no, don’t stop.”

I slide my fingers farther, thumb slipping between her cheeks, fingers making contact with the soft wetness of her pussy. I’m gentle, but her skin is so supple and silky. She moans and sucks in a breath.

“How’s this?” I ask.

“I used to have a crush on you,” she says.

“Oh, yeah?” With two fingers I tease her pussy.

She shudders, then says, “Back then, when I knew you were coming over, to hang out with Jack I mean, I’d stand in front of the freezer with the door open, trying to make my nipples stiff, so they’d show through my shirt.”

“That’s hot. But I had no idea.”

“I know.” She bites her lip, sucks in a breath.

I lean in, kiss her.

At first, she’s tense, anxious. But the hesitation is only for a moment. She grabs my head, pulls my lips into hers. It’s frantic, sloppy, raw. Her lips are plush, her tongue velvet against mine. I lean into her, my fingers playing with her sex, dripping with her heat.

“You’re going to make me cum,” she says, the words rushing from her, slurred as they squeeze between our lips.

“Good.”

“No,” she hisses, “I don’t want your fingers. I want your cock.”

If I wasn’t already hard, hearing those words coming from a girl like Harper would have given me a boner so fast I’d have torn a hole in my shorts.

And then she adds, “I want to feel your cum inside me.”

I can’t believe she’s saying this. I could faint. But instead I drop my pants and let my cock spring free. It’s stiff as a broomstick, and nearly as long.

I push Harper farther onto the counter. Her feet leave the ground, her legs kick in the air, scrambling for purchase. Her butt looks fucking fantastic. I smack her ass, she moans. Then a second time. She moans louder.

I hold her down, line up my cock. I rub its head against her pussy, get it slick. She’s so ready, so wet.

I shove in, her tight pussy the most powerful drug. She gasps, my head swims. I grab her tiny waist and fuck her hard, my hips slamming into her ass.

I am in bliss. I was prepared for a week of blue balls, but here I am, fucking Harper for everything I’m worth, my fat dick pumping away, her sweet ass spread in front of me. With each thrust she moans, and I need her more.

I slap her ass, rough, holding back nothing. Her moan becomes a squeal. “You’re making me cum…”

And she is, her pussy spasms, gripping my dick. And that’s more than I can take. I tense, buck, jerk my hips. My dick spurts, spraying its semen deep.

I grab her, pull her up against me, hands on her tits. She twists her head, our lips lock. While we kiss, my cock pulses and pulses, my balls draining inside her. It is pure relief.

Source: reddit.com/r/sexystories/comments/qrv91d/some_late_night_blue_ball_relief_from_my_friends