Part 1

The bright morning sun felt different on my skin. Possessive. It was like it was laying a warm hand over every single place Colin had marked.

I was practically floating across the hot, sugary sand. The sound of the surf was lazy, just this distant rhythm, but my blood was thrumming. My red lifeguard bikini... it didn't feel like a uniform. It felt more like a victory banner, you know? Stretched tight across my body. Every time I moved, every firm bounce... it was like this secret pulse. A reminder of last night.

Of Colin.

My mouth kept twitching into this stupid, giddy grin. I’d done it. God, I’d finally done it. After three years of this... aching, my obsessive fantasy, I’d given my virginity to my stepbrother.

And he hadn't just taken it. He claimed it.

Just the memory of his scent... all dark musk and male heat. The way he worshiped my body, with this primal intensity. It was still making me tremble. The memory of his voice, that low growl of "Take it, baby," right as his thick cock stretched me open... just pounding me into the mattress... Fuck, I’m getting myself all wet again.

He’d made me cum so many times I lost count. Each one was... it was confirmation. That this, being his, was exactly where I was meant to be.

I spotted Madison already perched in her chair. Her long dark hair looked so gorgeous against the bright blue sky. She had one hand up, shielding her eyes, and I could see this playful frown on her face even from far away. She was tapping her wrist, right where a watch would be, and then pointed at me.

“About time, Mia,” she called out as I got closer. Her voice was this total performance, like she was trying to sound stern. “Look what the cat dragged in. Or should I say, look who finally crawled out of bed.”

I climbed the ladder, feeling the warm, solid metal beneath my hands. “Sorry Mads,” I said, grinning. The voice that came out was this low, gravelly husk. I barely recognized it myself. I settled into the chair next to hers, the wood creaking.

She leaned over, her teasing gaze just raking over me. She knew. Her playful just froze. Her eyes went wide, and then it just cracked, exploding into this grin of pure, gleeful conspiracy.

“Oh my god, Mia.” She leaned in so close I could smell her coconut sunscreen, her voice sinking to this excited hush. “You’re radiating. Your voice is shot. And you are walking very, very carefully.”

“So? Spill. Now. Was he… everything? Was Colin everything you dreamed he’d be?”

My gaze just drifted across the hazy, sun-drenched beach. For years, I’d listened to Madison’s stories. The wild frat parties, the quickies in bar bathrooms, all the details that left me squirming in my seat, my own untouched body aching with this frustrated, secret heat. Now, it was my turn. And my story was better than any of hers. It was forbidden. It was perfect.

And I was going to make her beg for every detail.

I let out this long, dramatic sigh. I stretched my arms over my head, like I was remembering something beautiful and pure. “God, Mads,” I started, and I softened my voice, totally on purpose. “It started… I don’t know. It was different. Everything was just... charged.”

I painted a picture of the boardwalk for her. The way the sun caught his jawline, the way his fitted polo just clung to his broad shoulders. I told her about the nervous flutter in my stomach, how his dark eyes were tracking me in my pale blue sundress. How his look felt like a physical touch, just heating up my skin even from far away.

“He was fighting it so hard,” I murmured. “You could see it in his eyes. He wanted me. But he kept trying to be the big brother, you know? To pull away. But I wasn’t having it.”

I stopped talking for a second. I wanted to let that romantic part sink in, and I could see her leaning in. She was totally hooked. And then I hit her with the real stuff. The stuff Colin was going through, those years in the military changed him. And it broke my heart to hear his voice cracking. And that, like, thousand-yard stare he had when he was talking about all the things he had seen. The things he'd done.

“He has so many nightmares about his time over there,” I said, my voice was getting thick, just remembering his pain. “He was talking about the guilt... how he felt like he'd lost a part of his soul over there.” I reached out and squeezed her arm. “He was just so… human. So scared. And he trusted me with it. He let me in.”

Madison’s whole expression shifted. That flushed look she had in her eye was gone. It was replaced by this genuine softness and concern. “Oh, Mia,” she shook her head. “Poor Colin. That’s… God, that’s a lot to carry.”

I nodded, and I let a single tear well up before brushing it away. “I held him. I just told him he wasn’t alone. That whatever he faced, we’d face it together.”

I look up at Madison. "You know he was my rock when my dad died. He pulled me out of that dark hole when I didn't think I could breathe. And seeing him like that… broken? There wasn't anything I wouldn't do for him. Anything."

I leaned back, letting the mood shift back to the present. "And what he needed… was to stop thinking entirely."

I let a new, darker heat seep back into my voice. A low purr. The kind that promised the filth she was really waiting for. “And then, Mads…” I leaned in, my eyes locking with hers. “We went to the end of the long pier. The air was different. And I knew, looking at him… I knew I wasn’t just going to let the night end with a hug.”

I let the silence stretch, just holding her, before I kept going in that same low, husky tone.

“I looked at him, and I told him I was ready. That I’d been ready for years and I knew what I wanted.” I bit my lip, just letting the memory wash over me. "And he just... he grabbed me and kissed me. God, it was so... I just poured everything into it, all that waiting. And he kissed me right back, just as hard. And when we finally broke apart... I just had to have him, and I got on my knees.”

Madison’s jaw actually dropped. “No,” she gasped, with this mix of shock and delight. “Fuck Mia, right there? On the pier?”

“Right there,” I said, just smiling. “With the moon on the water and the sound of the waves... I unbuttoned his shorts. When I pulled him out… God.” I fanned my face with my hand, like, letting out a shaky breath. “He was so much bigger than I ever imagined. Just thick and heavy in my hand.”

I told her everything. The way his low growl just vibrated through me when I first took him in my mouth. How I’d deep-throated him until my eyes were watering. I described all the filthy, possessive things he was whispering, how his fingers guided me.

“He told me to put my pretty lips back where they belong.” My pulse was quickening just remembering it. “And I did. I was a total slut for him, Mads. It made me so wet I couldn’t take it. I started fingering my pussy right there on the pier while I was sucking him off, just moaning around his dick.”

Madison let out this strangled squeak and her hand flew to her chest. “You did not.”

“Oh, I did,” I purred. I felt my confidence just skyrocket. I stretched like a satisfied cat. “I came so hard while I was swallowing his load. All over my own fingers. He watched the whole thing.” I could feel a flush creeping up my neck. “And when he finally came, Mads… it was so much. I swallowed it all, every last hot, salty drop. It felt sooo good.”

Madison’s grin turned wicked. "Jesus Christ, Mia." She pulled back just enough to flick her gaze down my body, shaking her head like she couldn't believe it.

"Look at you Mia, my sweet, innocent virgin best friend, on her knees swallowing her stepbrother’s load."

I bit my lip, my thighs pressing together just remembering it. The way his cock was pulsing against my tongue, the way his hips jerked when he came...

Madison’s fingers snapped in front of my face, jolting me out of the haze. "Oh no, don’t you dare get all dreamy-eyed on me now," she teased. "I need details. Did you get his dick all the way down your throat? I bet you did. I bet you took every single fucking inch, didn't you, Mia?"

A shiver ran through me at her words, just the way she said them, like it was a compliment. Like being Colin’s eager little slut was something to be proud of. And god... wasn’t it?

I smirked, lifting my chin. "Every. Inch." I dragged the words out, slowly and deliberately, just watching her eyes get wide.

"Fuck. Me." She exhaled, sharp, shaking her head. "I knew you had it in you, but Jesus, Mia. You went full slut on him."

I grinned, flipping my hair over my shoulder with a shrug. "What can I say? Three years of pent-up lust makes a girl desperate."

Madison barked out a laugh, shaking her head. "Oh, honey, you’re not desperate." She smirked, nudging me with her elbow. "You’re insatiable. And judging by that walk of yours, he didn’t stop at just your mouth."

I just bit my lip, letting my silence do the talking.

Her eyes went wide. "Mia."

I just smiled.

"MIA."

I arched a brow. "What?"

She grabbed my shoulders, shaking me a little. "TELL ME HE FUCKED YOU."

I laughed, swatting her hands away. "Oh, he fucked me, Mads." My voice got low and husky. "He fucked me everywhere."

Madison’s mouth fell open. "No."

"Oh yes."

Her grin turned downright evil. "And?"

I exhaled slowly. "And it was… fuck, it was incredible."

"So, he leads me off the boardwalk," I murmured. "And he tells me he checked out rental houses earlier, found one with a lockbox. Memorized the code like some kind of criminal."

Madison gasped, her fingers tightened around my arm. "No fucking way."

“We broke in, Mads. Just walked right in like we owned the place. The second that door shut…" I shivered, biting my lip. "He slammed me against the wall. His hands were everywhere. Ripping my dress off, grabbing my ass and hips, just pulling me close."

Madison whimpered, her thighs pressing together. "Fuck, Mia."

"He ate me out," I breathed. "He pushed me onto the bed, spread my legs, and just…" I moaned a little, remembering the first hot swipe of his tongue.

"He was sucking my clit and fingering me, and I was just grinding against his face..." I did a few little hip-rolls, right there in the chair, just to show her. "Like a fucking slut. I was just moaning, and then…"

I arched my back against the tower's wooden railing. "'Fuck, I’m cumming. I’m cumming…'" I whispered, just like I did last night. 

Madison’s face was so flushed. I just grinned at her, totally pleased with myself.

"Then he pinned me down," I continued, my voice dropping even lower. "Told me to beg for it. So I did. I begged like a good little whore." I was smirking, watching her pupils get huge.

I pitched my voice up all high, just like it was. "Oh please, Colin! I need your cock so fucking bad! Stretch my tight little cunt open! Take what's yours! Just please fuck me!”

"And when he finally pushed inside…"

I just… paused. I let the tension build. Madison was nearly vibrating out of her chair.

"Oh my god, Mia. Keep going," she hissed.

"It hurt, just for a second." My thighs pressed together, just remembering that stretch. "But then… fuck, Mads. He was so big. So fucking deep. My tight pussy stretched around him like it was made for him." I let out a shaky breath. "And when he was fucking me... God, I lost my mind. I sobbed. I was begging him not to stop. Told him to ruin me."

Madison’s chest was rising and falling, so fast. Her lips were parted. Her fingers were under the waistband of her bikini bottoms, her hips were shifting, just enough for me to notice.

"Tell me you begged for his cum," she moaned.

I grinned. "Oh, baby, I screamed for it." I leaned in close, right to her ear. "I told him that I was his dirty sister, his fucktoy, and I needed his cum dripping out of me."

Madison let out this choked moan; her fingers were working faster under the fabric.

"And then he did it," I whispered. "He was pounding into me like an animal, then he exploded, balls deep, and filled me up. I felt it, Mads. Hot and thick, just pumping deep in my tight, wet hole.”

"That’s it, Mia... take it all... fuck," she moaned, her eyes squeezing shut. "Take his cum... God, I'm..."

"I was so good for him. I came so fucking hard while he was filling me up, I know I milked every drop of cum he had."

Madison’s back arched, and her breath was stuttering; god, she looked so fucking hot. A quiet, shuddering moan escaped her lips as her thighs clenched. Her fingers stilled, her whole body trembling for one... endless second. Then she just slumped back into her chair, panting.

"Holy shit, Mia," she gasped, her cheeks flushed.

I just smirked. "Told you it was worth the wait."

Madison whipped her head around, scanning the empty stretch of beach. Then she turned back to me with a wicked grin. "Fuck, Mia," she breathed, fanning herself dramatically. "That was hot. Like, holy shit."

I laughed, flipping my hair over my shoulder. "Hey, I’m just excited to finally be the one telling the story for once."

"Oh no, baby. This isn’t just a story. This is a milestone. And milestones require proper celebrations."

I arched a brow. "Oh yeah? What did you have in mind?"

She clapped her hands together, practically vibrating with excitement. "We’re going out tonight. All three of us. You, me, and your very hot stepbrother."

I blinked. "Wait, what?"

"Club," she declared, as if that settled it. "Somewhere dark, somewhere loud, somewhere with expensive drinks and sticky floors and lots of grinding."

I snorted. "You just want to see us in action."

"Damn right I do!" She grinned. "I’ve been waiting years for this. I want to see the way he looks at you when you’re in that black dress I know you own. I want to see him lose his goddamn mind when some random guy tries to flirt with you."

I bit my lip. I was already imagining it. Colin’s firm grip on my waist... his low growl in my ear... the way his hands would tighten when he pulled me against him on the dance floor.

Madison wiggled her eyebrows. "And maybe I’ll find my own fun while I’m at it."

I laughed, shaking my head. "You’re ridiculous."

"I’m supportive," she corrected, tossing her dark hair over her shoulder. "So? You in?"

I didn’t even hesitate. "Oh, I’m in."

Madison grinned like the devil himself. "Perfect. Now go text your man and tell him he’s not getting out of this."

I was already pulling out my phone, my fingers flying over the screen.

So. We’re going clubbing tonight. Madison’s orders.

A pause. Then…

…Define “we.”

I smirked. 

You, me, and Madison. She wants to see you try to behave yourself in public. I told her you wouldn’t last five minutes.

His reply was instant.

Fuck.

I laughed.

Exactly