She was already wet when she straddled him, but the real heat started the moment his thick cock slid inside her. Lena ground down hard, taking every inch, her own girl cock twitching between them. It had always been bigger than average, a heavy seven inches that hung thick and veiny when she got turned on. Tonight it felt different. Hotter. Tighter.
"Fuck, you're swelling," he groaned, eyes locked on her shaft as it pulsed against his stomach. Lena moaned and rolled her hips, feeling the familiar throb turn into something sharper. Her girl cock jerked once, then again, and she watched in raw hunger as it thickened right there in front of them. The head flared wider, the shaft stretching longer with every heartbeat. Veins stood out like ropes. It grew from seven inches to eight, then nine, the skin stretching tight and shiny.
"Goddamn, look at that thing," he growled, wrapping both hands around it. His fingers couldn't meet anymore. Lena's girl cock kept pushing outward, gaining girth and length with every stroke he gave it. She rode him faster, slamming her pussy down on his cock while her own shaft surged another two inches. Precum poured from the slit in thick ropes, soaking his abs. The weight of it was obscene now, a heavy, throbbing monster that slapped against her belly with every bounce.
She leaned forward, bracing her hands on his chest, and watched her girl cock keep growing. Ten inches. Eleven. It curved upward, the head fat and purple, the shaft so wide she could barely grip it with one hand. Every thrust made it swell more, the skin stretching, the veins pulsing. Her balls tightened and grew heavier too, hanging low and full between her thighs. The sensation was filthy and perfect, her pussy clenching around him while her cock demanded attention.
"Stroke it," she demanded, voice rough. "Make it bigger." He obeyed, both hands working her massive girl cock in long, twisting pulls. It responded instantly, surging another inch, the head flaring even wider. Lena's whole body shook.
She could feel every new inch as it formed, the rush of blood, the stretch of skin, the way it grew heavier and more sensitive. Her cock was easily a foot long now, thick as her wrist, and still throbbing larger.
She pulled off his cock, spun around, and shoved her dripping pussy onto his face while she swallowed the head of her own girl cock. The taste was salty and intense. She sucked hard, tongue swirling, and felt it grow even more inside her mouth. It stretched her lips wide, the shaft lengthening until it hit the back of her throat and kept going. He licked her clit furiously while her cock kept expanding, pushing deeper, forcing her to take more.
When she couldn't hold back anymore, Lena climbed back on top. She lined up her enormous girl cock with his mouth and sank down onto his cock at the same time. Her shaft slid between his lips, stretching them obscenely as it grew another inch inside his throat. He gagged but took it, hands gripping her ass while she fucked his face and rode his dick. Her girl cock was massive now, over a foot and a half, so thick it made his jaw ache. Every thrust made it swell bigger, the head pushing past his tonsils.
She came first, her pussy clamping down hard while her girl cock erupted down his throat. Thick ropes of cum pumped out in heavy spurts, the volume increasing with each new pulse as her cock kept growing through the orgasm. He swallowed what he could, the rest spilling out around his lips. Lena kept moving, milking every drop, her cock still twitching and expanding even as she came.
When she finally pulled out, her girl cock hung heavy and enormous between them, easily eighteen inches of thick, veiny meat, still half-hard and dripping. She wrapped both hands around it and stroked slowly, feeling the last few growth spurts settle. It was hers now, this huge, obscene thing, and she already wanted to feel it grow again.
He was staring, cock still buried inside her, breathing hard. "Again?" he asked.
Lena smiled, already feeling the first fresh throb. "Make it grow."
