AN: Cross-posting a guilty pleasure fic from my AO3 account. It's doing fairly well over there, so if this is new to you, I hope you like it.
Runner's High
Chapter One, My Favorite Park
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From the moment he wakes up, anticipation fills him. It's like a heavy sensation knocking around inside his chest.
There's something he wants. Something he's chasing.
And he has to wake up an hour earlier than usual in order to work towards that goal.
He steps outside his dorm room in his usual running gear - black from his shoes to his sweatband, but his favored hoodie is the hunter orange one - When a familiar voice calls out to him.
"Oi, Naruto," Sasuke, one of his University classmates from Economics 101 is also decked out in running gear. "'Sup? You find a different place to go jogging or something?"
Naruto sheepishly palmed the back of his head. "Yeah, something like that."
"Do you recommend it? I've been trying to find a nice spot outside of campus."
"Hm," Naruto laced his fingers behind his head and turned his face up towards his thoughts. Soon as Sasuke joined his side, they walked out of the corridor together, until it took them to the main lobby leading outside. "Do I recommend it. Well... The view is gorgeous. In fact, there's plent to look at, and I feel like I'm always discovering new spots to look at, too. It's real quiet and secluded for most of the morning. I always have a peaceful jog when I'm there. I guess I do recommend it, but I'd kind of like to keep it all to myself, y'know?"
Sasuke chuckled at his selfishness. "Fine, fine. I get it. I'll keep looking. But if all else fails, you got to share with me."
"Ha! No way!"
Sasuke lightly punched him in the shoulder.
He goes about this like any ole run.
He sets the pace at a steady trot, arms swinging evenly with his stride, feet contacting the paved asphalt with purpose.
The park is dense with trees. It locks in the cold air wafting up from the river ahead. But after a few minutes, his body is warming and the still morning air becomes refreshing. Wanted.
He starts panting in measured intervals. After twenty minutes, his chest is burning. But it's a pleasurable sensation. It's a sign that he's doing this right, that he's getting stronger.
He feels like he's flying.
He feels like he's won.
And there is his prize, just up ahead.
That familiar silhouette.
She's always here at the same time.
She's got a pedometer armband strapped to her upper right arm as she swings in precision with her gait. He gets the sense that she's trying to get healthier, perhaps after a few years of insidious stagnation. Maybe from childbirth or overworking herself at the office. It's just a guess.
Everything about her just bounces. Like her super cute night-colored bob.
She really sells that classic Mom vibe.
Maybe she had the loose ponytail when she was a newlywed. He likes to think about how she looks in an apron.
His body flushes hot with the steady intensity of his thoughts.
He keeps his distance for now, not that he means to be a creep.
It's just that... He doesn't know what he would say if he actually talked to her.
Or hell, if she actually talked to him!
And he's a lifelong social butterfly! The life of the party! The one with the most stories and the most talent telling them when meeting up for drinks! Girls he's not even interested in tease and disparage him for being naturally flirty!
But she's no girl.
She's a full-grown woman.
And he really means full-grown.
Her fitted hoodie and compression tights are useless against her explosive curves.
How her husband lets her step food outside like this, he'll never understand.
She rounds the curve up ahead as the path diverts away from the river. Shiny black rails and quaint wooden benches line the edge of the park, providing a nice stop for a nice view.
He rounded the curve.
The distance between them was shrinking.
He had the longer legs, so it was only inevitable. He couldn't imagine she was slowing down already. She was really dedicated to her workout.
Her measured panting carried along the breeze and past his ears, confirming his confidence in her, and he wondered what else got her breathing hard.
God, just look at that ass.
Does it bounce like that when she's riding?
He bet it does.
He's closing in on her. He can't keep his face fixed ahead as her face finally comes into view.
She's working up a nice sweat.
Milk-white skin glistening like glass. The contrast against her pillowy curves entices him.
And her eyes are absolutely stellar. He's never seen anything like hers before. But right now, her gaze is hardened with utmost focus.
Lucky him.
After all, he was still staring.
He averts his eyes onto the path, clearing his mind of sin as he breathed in that fresh air.
Someday he'll talk to her.
A month has passed and he still hasn't approached her.
He's decided that it'll happen naturally given enough time.
He hasn't jogged here long enough to be familiar to her.
But if he keeps pace with her, eventually they'll become de facto running buddies!
That's what he's betting on.
He's stunned when he finds her jogging in a lavender tissue top, her white sports bra underneath almost tricking his eyes into thinking she was braless.
Just thought of the morning air hardening her nipples as they strained through the sheer fabric made him rock hard.
He's never pushed himself to reach her faster than that exact moment.
He just needed to check. Make sure that his hormones weren't misleading him.
When he reaches her side, he chances a look.
Holy.
Fuck.
Her tits were larger than he thought! Her waist was smaller than he thought!
What the actual fuck?!
What god made you and where can I give my offerings!?
He can't stop staring.
They're straining against the hem of her sports bra. Supple, snowy flesh rising over the top like dough. They bounce to meet her clavicle, and he can no longer think of anything pure. He just wants to see them bounce in every position imaginable.
On her back when he's railing her.
On her knees when he slips his dick beneath her sports bra and humps her soft flesh silly.
Fuck, he was decently endowed, but he bet even his dick wouldn't pop up through her cleavage. That's how fucking big they were!
He winced as his erection grew painful inside his compression pants. Never before had he despised something he was so thoroughly grateful for.
His hard-on was well-hidden.
It's utterly hopeless.
He ditched a mixer with Sasuke just so he could come back to his empty dorm room and masturbate. The other girls there, they just didn't do it for him.
Giggly. Naive. Basic.
No. He wanted her.
Soft. Mature. Forbidden.
He envisions her bending forward at the waist, smiling cheekily at him, her man-eating cleavage taunting him like she knew it would. She tucks a strand of hair behind her ear and winks. "Oh, hello! You're out for a run, too?"
Naruto flipped onto his stomach, his head grounding against the mattress as he gripped his shaft. One pump over his glans leaves him shuddering, a groan locked in his chest. Precum beads from his tip. Another pass of his hand leaves him coated in slippery lust.
She forgot her water bottle today. Her snowy cheeks pinken with embarrassment. "Can I borrow yours?"
When the plastic rim touches her lips, he can feel their warmth and softness close around his tip. Some water has escaped. It dribbles down her chin, her neck, wetting her cleavage.
He imagines his cum running down her skin just the same, imprinting her with the stink of his semen.
She takes notice of his erection, how he strains through his breezy running shorts. That sweet flush of pink deepens as her lids droop seductively with intense interest.
She presses herself and all her heavy softness against him, her experienced hand cupping his growing hardness. She looks up at him coyly, like he was asking for this.
Naruto squeezed the base of his shaft, his hips spasming for release, but not yet. Not yet.
"My husband doesn't pay attention to me anymore. But you like me, don't you, Naruto-kun?"
His jaw stretches open as his chest trembles around a muted moan. His hand surged up and down his diamond-hard length as he panted harder than he ever has running. His face was tight with heat, he felt like he was going to burst.
She takes him around the back of a restroom. They're surrounded by shrubs and dense wood, but it's still too risky.
Neither of them care once she frees him from the thin layer keeping him decent, sliding it down his strong legs until they stretches taut around his ankles. She squatted down, paying reverence to his raging hard-on jutting from his pelvis, thick veins running along his engorged member, her eyes following the trail up to his weeping glans. His tip is purpling with need and impatience. She could literally kill him by the drawn-out denial of release.
As if torture were on today's agenda, she leaned in with her tongue straight out and traced the seam of his damp balls, her large, lidded gaze almost patronizing, as if conveying to him who was in charge.
Cock twitching with every wet, stroke of her tongue, precum began to dribble down the underside, where she caught it with the most ghostly laps of her tongue.
She finally dragged her tongue along the underside, tasting every slippery offering of precum that oozed out of him, her face looking very satisfied. She closed her mouth over his tip, lapping at his meatus, sending shocks of ecstasy and pain down to his base. His balls tightened with need.
Naruto's right hand slipped under his pillow as he palmed it against his lustful grimace, hips rutting against his hand.
He needed to cum. But he wanted to savor this.
That's why he imagined her this way.
Even though he wanted to dominate and defile her, she was the experienced one, the one that could control him with a single smile.
She let him go with a sticky pop. She then backed up against the brick wall of the restroom, her fingers hooking in the straps of her sports bra. She slid it off her shoulders, revealing creamy skin inch by inch. They freed with an erotic bounce, spilling over her ribs like firm bags of milk. He didn't care that she wasn't a firm as she used to be. It only made her sexier.
She opened her mouth wide open and stuck out her tongue. "Your onahole is prepped and ready to go, Naruto-kun."
"Fffuuck! So close..! Uh! Ah! Unnngh!"
He gripped her head, steadying her against the wall as he plunge himself down her throat. Hot and wet, she tensed around him, the sensation threatening to careen him over the edge.
He fucked her face with total abandon. He watched as tears pooled in her eyes and spilled down her cheeks. Her spit and his precum made for a filthy broth in her mouth, one that bubbled around her lips, glued her face to his crotch and made strings when he pulled out. They snapped and landed against her trembling cleavage, her mountainous breasts wobbling with the force of his hips.
When he saw her start to tweak her own nipples, he lost it.
Hot, ropes of jizz shot out, staining his mattress. With every frantic pump, he released more and more. His breath sawed in and out of his throat. His sweat-sheened body turned clammy as the heat within him died down and he collapsed on his side, avoiding the wet spot in the middle.
His heart hammered painfully with need as his eyes closed and he steadied himself with a deep, careful sigh.
He wasn't satisfied at all.