Forbidden Friction

Chapter 1: The Dangerous Deal

I leaned against the doorframe of Kristina’s room, arms crossed, a sly grin tugging at my lips. My sister was sprawled on her bed, scrolling through her phone, completely oblivious to the favor I’d just done for her. I’d spent two hours fixing her laptop after she’d somehow managed to crash it with a shady download. Now, it was time to collect.

'Hey, Kris,' I started, my voice casual but laced with intent. 'I think you owe me for saving your ass with that laptop. How about a little... repayment?'

She didn’t even look up, her sharp green eyes still glued to the screen. 'What, you want cash? I’m broke, Stas. You know that.'

I chuckled, stepping into the room, the air between us already crackling with something unspoken. 'Nah, not cash. Something... different. A little harmless fun. You’ve been so stressed lately. Let me help you relax.'

That got her attention. She sat up, her dark hair falling over her shoulder as she shot me a glare that could cut glass. 'What the hell are you talking about, pervert? I’m not one of your little flings.'

I raised my hands in mock surrender, but my eyes lingered on her toned legs, barely covered by those tiny denim shorts. 'Chill, sis. I’m not asking for anything crazy. Just a little... closeness. No big deal. I’ll keep it over the clothes. You won’t even feel a thing.'

Her brows furrowed, and she crossed her arms over her chest, pushing her breasts up in a way that made my throat go dry. 'You’re disgusting. What exactly do you mean by closeness?'

I stepped closer, lowering my voice to a husky whisper. 'Just let me rub against you a bit. Through the shorts. That’s it. You don’t even have to do anything. Consider it payment for the laptop fix.'

Kristina’s face flushed a deep crimson, her lips parting in shock before she snapped them shut. 'Are you out of your damn mind? That’s not a favor, that’s... gross!'

'Come on, Kris,' I pressed, my tone smooth as silk. 'It’s not like I’m asking to go all the way. Just a little friction. You’ll barely notice. And I know you’re curious, even if you won’t admit it.'

She scoffed, rolling her eyes, but I caught the way her fingers tightened on the edge of her bedspread. 'Curious? I’m about to throw up. Fine. But only through the shorts, and if you try anything else, I’ll knee you so hard you’ll sing soprano.'

I grinned, my heart pounding as I climbed onto the bed, positioning myself over her in a classic missionary pose. She lay back, her body tense, her eyes narrowed in defiance. My cock was already stirring in my jeans, the thought of being this close to her driving me wild. I lowered myself, keeping my weight on my forearms, and pressed my hips against hers, the rough fabric of her shorts grazing me through my pants.

'Don’t get any ideas, Stas,' she hissed, her voice sharp as a blade. 'This is it. No funny business.'

'Relax, sis,' I murmured, my breath hot against her ear as I started to move, slow and deliberate. The friction was maddening, the heat of her body seeping through the layers of clothing. I could feel myself getting hard, the ache building with every grind. 'See? Harmless.'

Her jaw clenched, but she didn’t push me away. Not yet. Her breaths came quicker, though, and I couldn’t tell if it was anger or something else. 'You’re such a creep. Hurry up and get this over with.'

I smirked, picking up the pace just a little, my hips rolling against her. 'Just a little longer. Feels kinda nice, doesn’t it?'

'Nice? I’m counting the seconds until I can kick you off,' she snapped, but her voice wavered, and I noticed her hands gripping the sheets tighter.

The tension was electric, my body buzzing with need. I knew I was pushing boundaries, but the thought of stopping now was unbearable. 'How about we lose the shorts? Just down to your panties. It’ll feel even better. Promise I’ll behave.'

Her eyes widened, a mix of fury and disbelief flashing across her face. 'Are you serious right now? No way!'

'Come on, Kris,' I coaxed, my voice low and persuasive. 'It’s still safe. Just a little closer. You can trust me.'

She hesitated, her lips pressing into a thin line, but after a long moment, she muttered, 'Fine. But I swear, Stas, if you try anything—'

'I won’t,' I lied, helping her shimmy out of the shorts, revealing a pair of simple black panties that hugged her curves in a way that made my mouth water. I settled back over her, the thinner barrier between us making every sensation sharper, more intense. My cock was rock hard now, straining against my jeans as I rubbed against her, feeling the heat of her pussy through the thin fabric.

'This is too much,' she growled, her voice trembling with a mix of anger and something I couldn’t quite place. 'Back off a little.'

But I didn’t. I couldn’t. The need was too strong, and as I shifted, I let my hand slip down, tugging her panties to the side just enough to feel the bare, warm skin of her. She gasped, her body jerking beneath me. 'What the fuck, Stas?! I said no!'

'Just a little more,' I whispered, my voice thick with lust as I pressed myself against her dripping heat, the sensation almost unbearable. 'You feel so good, Kris. Just let me—'

Her protests cut off as I moved, the tip of my cock brushing against her entrance, and I knew we were teetering on the edge of something we couldn’t take back. The air was thick with tension, our bodies sweating, panting, the forbidden thrill of it all pushing us closer to an explosive breaking point.