Position 1: Reverse Cowgirl

Britney shifted, pulling Emily gently but firmly into a sitting position on the bed. With a practiced ease, she turned Emily around, guiding her until Emily was straddling Britney’s lap, facing away, her back against Britney’s chest. Emily’s big, perfectly rounded ass now presented itself, glistening with sweat and come. Britney’s huge cock, slick and ready, nudged against Emily’s wet opening.

Emily whimpered, a low, needy sound, and slowly, hesitantly, lowered herself. The entry was a slow, agonizing stretch, a deep, pulling sensation that made her gasp. She felt Britney’s thick girth parting her lips, then pushing past, deeper and deeper, until she was impaled, sitting fully on that monstrous length. A shudder ran through her, her hands gripping Britney’s thighs for balance.

Britney’s hands found Emily’s waist, steadying her as Emily began to slowly grind her hips, a tentative, exploratory motion. Britney whispered encouragement, her breath hot on Emily’s neck. "That’s it, baby. Ride it. Show me what you got."

Encouraged, Emily found a rhythm, her hips circling, then pumping, the sensation of Britney’s huge cock filling her from behind sending shivers down her spine. The angle was different, deeper, hitting new spots within her. She arched her back, moaning softly as Britney’s hands moved from her waist to her heavy breasts, cupping and teasing them. Each upward thrust from Emily’s hips brought a deep groan from Britney, and a gasp from Emily as the head of that thick cock brushed against her cervix.

The sounds were magnified in Steve’s room, filling the space with Emily’s gasps and Britney’s grunts. He watched as Emily rode Britney like a seasoned pro, her blonde hair bouncing with each thrust, her ass jiggling deliciously. The sight of Britney's massive erection disappearing completely into Emily's body, then reappearing, slick and gleaming, was a torment. He could almost feel the stretch, the fullness, the absolute surrender of his wife to that immense power. His own limp penis felt like a betrayal, a testament to his inadequacy. His stomach churned with a mixture of revulsion and a twisted, self-inflicted excitement.

Emily’s ride grew wilder, her moans transforming into breathless cries. She was nearing another peak, body humming with the intense friction. Britney, feeling Emily’s impending climax, pressed a hand to Emily’s belly, kneading gently. Another wave of hot, thick cum surged from Britney, burying itself deep within Emily’s already filled pussy. This time, Emily cried out, a raw, guttural sound as her body locked into another powerful orgasm, her muscles clenching around Britney’s gushing cock. She slumped forward, head resting on Britney’s shoulder, utterly spent but still impaled. The fresh load added to the warmth inside, a heavy, luscious weight.