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The Enlargement

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A woman invites her friend over for a threesome with her husband, but the husband is surprised to find out the wife's friend is a transwoman, with a very large penis. The woman seems to enjoy having sex with her friend's very large penis, so the husband starts looking into penis growth pills.

Chapter 3: Cowgirl

Clara gasped, the tremors still rippling through her from Alex’s climax. But beneath the warm flood filling her, the hard ridge pressing against her deepest walls didn’t soften. It pulsed, thick and insistent, still stretching her wide. A slow, dazed smile spread across Clara’s sweat-slicked face. "Oh fuck," she breathed, her voice thick with awe. "It's still so hard." She shifted her hips experimentally, grinding down, feeling the massive shaft twitch inside her. "You are fucking incredible, Alex."

Mark watched from his knees, his own softening cock sticky against his thigh, his breath still ragged. He saw the thick ropes of his cum cooling on Clara’s breasts and stomach, stark white against her flushed skin. But his gaze was locked lower, on the obscene thickness buried in his wife, glistening with mixed wetness. It hadn’t subsided at all. The sheer, unnatural staying power of it sent another jolt through him, a confusing mix of awe and that sharp, familiar pang of inadequacy.

With a surge of strength, Clara pushed herself off Alex’s lap. Before Alex could react, Clara planted both hands firmly on Alex’s shoulders and shoved. Alex grunted in surprise, her back hitting the plush velvet of the sofa with a soft thud, her magnificent breasts bouncing. "My turn," Clara declared, her eyes blazing with renewed hunger. She straddled Alex’s thighs, positioning herself directly over the thick, glistening pillar that stood rigidly upward from Alex’s red curls. "Gonna ride this monster properly now."

Mark’s throat tightened. He saw the sheer scale of it again, dwarfing his own spent cock. Alex’s cock looked almost unreal in its thickness and length, the head swollen and purple, veins standing out like ropes. Clara reached down, her fingers wrapping around the base, slicking with the wetness already coating it – her own arousal, Alex’s cum, Mark’s spend transferred from her belly. She guided the broad head back to her stretched, puffy entrance, her wetness gleaming under the dimmed chandelier light. She sank down slowly, deliberately, her teeth biting into her lower lip.

"Fuuuuck yes," Alex groaned, her head falling back against the sofa, her hands gripping Clara’s hips. "Jesus, Clara… you take it so fucking well."

Mark couldn’t look away. Clara lowered herself inch by agonizing inch, her body visibly stretching to accommodate the girth, her inner lips clinging desperately to the invading shaft. Her breath hissed through her teeth, her eyes squeezed shut in a mixture of intense sensation and fierce concentration. He heard the wet, sucking sound as she took more, the obscene squelch as the massive head finally slipped fully past her entrance. She paused, panting, her thighs trembling, fully impaled.

"All of it?" Mark heard himself whisper, his voice hoarse.

Clara’s eyes snapped open, locking onto his. They were dark, dilated pools of pure lust. "Every. Fucking. Inch," she gasped. Then she began to move. Rising slowly on trembling thighs, letting the ridged shaft drag along her sensitive walls until only the swollen head remained inside, before slamming back down with a wet slap of skin on skin. She moaned, long and low, her head tipping back, blonde hair sticking to her neck.

Alex met her thrust for thrust, bucking her hips upward off the sofa cushions, driving her cock deeper with each powerful surge. "That’s it, baby," Alex rasped, her voice strained with effort and pleasure. "Ride it. Fucking milk me." Her hands roamed over Clara’s sweat-sheened torso, smearing Mark’s drying cum, squeezing her breasts roughly, pinching her nipples until Clara cried out.

The sounds filled the opulent room – the rhythmic slap of flesh, the slick, guttural glide of Alex’s cock pistoning in and out of Clara’s drenched, stretched cunt, Clara’s gasps and moans turning ragged, Alex’s low grunts. Mark’s own cock, despite his recent orgasm, stirred back to life. It thickened, the ache returning as he watched his wife being speared with such raw power. He couldn’t tear his eyes away from the point of connection, mesmerized by the way Clara’s pussy lips strained red around the thick base, glistening with every withdrawal.

Alex’s thrusts became desperate, her hips pistoning upwards in short, sharp jerks. "Gonna come again… fuck… Clara!"

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