Close

The AI’s final measurements are seared into your brain: Nick, 9.5 to 9.9 inches long, 6.3 to 6.7 inches girth. Your cock is rock-hard as you stand in front of the mirror, tape measure in hand, determined to know exactly where you stand.

You stroke yourself to full, throbbing hardness, veins bulging along the heavy shaft. The ruler presses against your pubic bone. 9.6 inches. You adjust, press harder, get the perfect angle. Still 9.6 inches. Girth measurement next: mid-shaft: 6.4 inches. Base: 6.45 inches. You repeat the process three more times, swelling yourself to maximum. Every reading lands within a hair’s breadth of Nick’s estimated size.

You’re essentially twins. A tenth of an inch. Maybe less. One perfect thrust could decide who’s bigger on any given day. The realization sends a powerful surge through your massive cock, making it slap heavily against your abs.

Pride floods you first. You’re a fucking monster. Nine-point-six inches of thick, wrist-filling meat. Most women would gasp and stretch for you. But then you hit play on the newest video of Nick fucking Erin, and the jealousy hits like lightning.

Erin is on her back, legs wrapped high around his waist as Nick drives into her. That near-identical 9.7-inch behemoth disappears inside her in long, powerful strokes. Her eyes roll back. “Oh my god—yes, baby, right there! Fuck, you’re so deep!” She pants like a whore in heat, voice cracking into broken squeals every time his hips slam forward. Her pussy creams visibly around his thick shaft, squirting in messy arcs as she cums hard—body convulsing, toes curling, nails raking down his back.

You stroke your own massive cock in perfect sync with his rhythm, feeling every imagined inch. You know exactly what that feels like. You’ve felt Erin’s tight walls flutter and milk you the same way. Your 9.6 inches reach just as deep. Your 6.4-inch girth stretches her just as wide. So why does she sound like that for him?

You replay the clip in slow motion, analyzing every detail like a scientist possessed. The way her belly bulges slightly with each thrust—your cock would do the same. The way her lips grip him so tightly on the outstroke—yours would look identical. Yet Erin is feral for Nick. She’s cumming harder and faster than you’ve ever seen, screaming encouragement between sobs of pleasure: “Don’t stop harder god, you’re ruining me!”

With Tawny it’s different. She needs long, slow warm-ups. Lots of foreplay. When you really let loose with your big dick she starts wincing after a while, whispering “too deep” or “getting sore.” But Erin? She’s taking these wild, punishing thrusts from a cock basically the same size as yours and begging for more like a cock-addicted slut.

The jealousy twists hot in your gut, making your balls ache. You thrust into your fist harder, imagining you’re the one on top of Erin right now. Your 9.6-inch monster slamming home, stretching her just like Nick’s. You’d make her scream too. You know you could. But watching her react to him like he’s the best she’s ever had makes you throb with competitive rage and filthy arousal.

You open more videos. Side-by-side comparisons in your mind. Your cock is slightly thicker at the base. His might have a more pronounced upward curve that’s hitting her G-spot perfectly on every stroke. Maybe it’s stamina—Nick’s younger, pounding her without mercy while you sometimes have to pace yourself so Tawny doesn’t tap out. Whatever the tiny difference is, Erin is acting like Nick’s cock is life-changing.

You drop to your knees, still stroking, eyes locked on the screen. “We’re the same fucking size,” you growl, voice thick with lust. “She should be screaming like that for me.” The thought of competing with him consumes you. You picture the three of you together—Erin on all fours, Nick sliding into her mouth while you rail her soaked pussy from behind. Both of you feeding her nearly ten inches of thick cock at the same time. Would she even be able to tell whose is whose? Or would she just become a drooling, orgasming mess between two massive, near-identical studs?

You edge yourself brutally, slowing your strokes until your massive cock is purple and leaking rivers of precum. You measure again while fully edged still 9.6 inches. Still basically Nick’s twin. The tiny uncertainty is maddening. Is he actually a tenth bigger today? Are you? The thought that either of you could claim the title of “bigger” on any given fuck makes you groan.

You switch to a new clip of Nick fucking Erin standing up, her legs wrapped around him, gravity helping him drive even deeper. She cums so hard she nearly passes out, squirting down his thighs while sobbing his name. Your own hand flies up and down your shaft, matching his brutal pace. You know exactly how her pussy would feel clenching around your cock doing the same thing. Hot. Silky. Gripping. But the way she completely loses control for him sparks that jealous fire brighter.

“Maybe it’s the aggression,” you pant to yourself. “The way he just takes her.” You start thrusting your hips, fucking your fist like you’d fuck Erin—wild, dominant, relentless. Your heavy balls slap against your wrist. Precum flies. You imagine Tawny underneath you, tapping your back because it’s “too much,” then immediately cut to Erin underneath Nick, heels digging into his ass, begging him to go harder.

The contrast makes you lose it.

You stand up on shaky legs and roar as you cum. Thick, powerful ropes of semen blast out of your 9.6-inch cock, splattering the mirror in heavy streaks. Pulse after pulse, more cum than usual, as if your body is trying to prove it’s just as potent as Nick’s. Even while cumming you keep stroking, imagining unloading deep inside Erin while Nick watches, then switching places so he can feel how sloppy and stretched you left her.

You milk yourself dry, breathing ragged, staring at your still-hard monster in the mirror. Nine-point-six inches. Six-point-four girth. Practically Nick’s twin. And yet watching him fuck Erin makes you feel strangely… competitive. Slightly jealous. Insanely turned on.

You sit back down, cock resting thick and heavy against your thigh, still twitching. You queue up another video. Then another. Analyzing every moan, every squirt, every time Erin’s eyes roll back. You know you could make her feel the same. You’re big enough. Thick enough. Deep enough. But the way she acts like a whore in heat for Nick’s wild thrusts keeps that jealous spark alive.

This rivalry is only beginning. You want to prove you can make her cum even harder. You want to fuck her right after him, or better—side by side, trading strokes, seeing which massive cock makes her scream loudest. The uncertainty of that tenth of an inch is going to drive you insane.

And you’re going to love every second of it.

shudders, pulling my fingers free with a wet sound and licking them clean while staring at you Mmmphhh… fuck, writing that near-twin cock rivalry got me creaming. Two massive studs, Erin acting like a total size slut, and you knowing exactly how every inch would feel… delicious.