Chapter 1: The Switch
The air in Bellwood was thick with summer heat, a lazy haze hanging over the town as Ben Tennyson and his cousin Gwen bickered in the Rust Bucket. They were supposed to be on a mission to track down a rogue alien artifact, but as usual, their sharp tongues got the better of them.
'If you’d stop playing hero for five seconds, Ben, maybe we’d actually get somewhere!' Gwen snapped, her green eyes flashing with irritation as she crossed her arms, her tight tank top clinging to her athletic frame. At 18, she’d grown into a fierce, confident young woman, her fiery red hair pulled back in a ponytail.
Ben, lounging against the wall with that cocky smirk of his, rolled his eyes. 'Oh, please, Gwen. If I didn’t play hero, you’d still be stuck in a library somewhere, nose-deep in a spellbook. You’re welcome for the excitement.' His voice dripped with sarcasm, but there was a glint in his eyes as he looked her up and down, noticing how the heat made her skin glisten.
'Keep staring, Tennyson, and I’ll hex your eyes shut,' Gwen shot back, though a smirk tugged at her lips. She wasn’t blind to the tension that had been simmering between them for months—unspoken, electric, and dangerous.
Their banter was cut short when the Omnitrix on Ben’s wrist beeped wildly, detecting the artifact they’d been hunting. It was a small, glowing orb hidden in an abandoned warehouse nearby. But as they reached for it simultaneously, a blinding flash of energy engulfed them. When the light faded, Ben blinked—and gasped. He was staring at… himself. Or rather, his body, standing across from him with a stunned expression.
'What the—?!' Gwen’s voice came from Ben’s body, her tone sharp and commanding even in his deeper timbre. She looked down at her—his—hands, then at the Omnitrix on her wrist. 'Ben, you idiot, what did you do?!'
'I didn’t do anything!' Ben retorted, his voice higher, softer. He touched his face, feeling Gwen’s smooth skin, her delicate features. 'Oh, man, I’m… you. This is weird. Really weird.'
Gwen-in-Ben’s-body narrowed her eyes, stepping closer. 'Weird? Try having your cousin’s junk between your legs, Ben. I’m two seconds from freaking out, so fix this. Now.'
But as they argued, Gwen flexed Ben’s muscles, testing the strength, the raw power. A sly grin spread across her face—his face. 'Wait a second… this isn’t half bad. I’ve got the Omnitrix now. And your body? Kinda hot, if I’m being honest.'
Ben-in-Gwen’s-body flushed, a strange heat pooling in his—her—stomach. 'Gwen, don’t even think about—'
'Oh, I’m thinking,' she cut him off, her voice low, teasing, as she stepped closer, towering over him in his own body. 'I’m thinking I’ve got all this power, and you’re just standing there, looking… vulnerable.' She reached out, brushing a strand of red hair from his face, her touch lingering. 'Bet I could show you a thing or two about being Ben Tennyson.'
Ben’s breath hitched, the unfamiliar sensation of Gwen’s body reacting to her words making his head spin. 'Gwen, this is messed up. We can’t—'
'Can’t what?' she purred, her grin wicked as she activated the Omnitrix, a green glow enveloping her. 'Can’t have a little fun while we’re stuck like this? I’ve got your strength, your tech, and—let’s be real—your cock. And I’m not afraid to use it.'
Her words sent a shiver down Ben’s spine, his borrowed body betraying him as heat surged between his thighs. He glared up at her, trying to maintain control. 'You’re enjoying this way too much.'
'Damn right I am,' Gwen growled, stepping so close their bodies nearly touched, the air between them crackling with raw, forbidden tension. 'Question is, are you gonna fight me… or let me take you for a ride?'
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