Her orgasm hits her like a freight train, shaking her entire body as she lets out a long, keening moan. Her nails dig into your shoulders and back, leaving trails of pain that only serve to heighten the pleasure. She's so close now... So close to feeling you fill her up with your seed.

"Give it to me," she gasps, arching her hips upward in invitation. "Fill me full."

With one final thrust you bury yourself to the hilt inside her, groaning as you feel her tight channel squeeze and milk your cock of every last drop. Her eyes roll back in her head, lips parted in a silent scream as she feels your hot cum spill into her womb. Your hips thrust slowly at first, then faster and harder, milking every last ounce from your aching cock before finally stilling, spent and satisfied.

The dog growls in warning as it gets closer to her again, its massive member already starting to harden once more. Your sister's eyes widen in anticipation and she parts her legs further, offering herself up to the beast. The air is thick with lust as they both prepare for another round of rough and intense lovemaking.

With a powerful thrust, the dog buries itself deep inside her, causing your sister to cry out in pleasure. Her body is wracked with tremors as she clings desperately to the sheets beneath her, trying to steady herself against the relentless onslaught of animal lust. The sounds of skin slapping against skin fill the room, amplified by their shared breath and labored moans.

Her eyes locked with yours, she licked her lips and whispered, "I can't believe I just did that... but it felt so good..." Her voice trailed off as she thought about the animal cock filling her up. She bit her lip, unable to hide the desire in her gaze.

You couldn't tear your eyes away from her as she sat there, still breathing hard from the encounter. Part of you wanted to punish her for what had happened, but another part was aching with desire, remembering how good it felt just watching. You swallowed hard, trying to find the words to say something, anything...

As if to prove her own desire for more, Jessica eagerly takes your cock back into her mouth without any hesitation. You groan, feeling the familiar sensation of her warmth surrounding you once again as she begins sucking and licking at your length. She seems determined to clean every last drop of cum from you before moving on.

The dog watches intently from the corner of the room, its tail swishing lazily back and forth as it surveys the scene unfolding before it.

"Mmm," she hums around your cock, "I thought you'd never ask." She pulls her mouth away from you long enough to reach behind and spread her cheeks wide. "Fuck me in the ass, Jason," she whispers, practically begging you to take advantage of this newfound desire she has for anal play.

You nod eagerly, positioning yourself between her legs once again. With one steady thrust, your hard cock slips effortlessly into her tight little hole.

The dog growls lowly, eyes half-closed in pleasure as he begins to pick up speed once again. His hips slam against her ass harder, the slapping sound echoing through the room. Her pussy clenches around its enormous length, trying to milk every drop of cum from it. "Oh God, yes!" she cries out, her head thrown back in ecstasy. Megan moans around your cock, bobbing her head faster as you begin to fuck her face.

With each thrust of the dog's hips, she feels him hit something deep inside her, sending shockwaves of pleasure through her entire body. She grips at his fur, digging her nails in as she rides out this incredible orgasm, her mouth working frantically on your cock. Her pussy clenches rhythmically around the animal's massive shaft, wanting more and more of his hot seed.

The dog collapses onto her, panting heavily as he tries to catch his breath. His massive body seems to engulf her tiny frame, holding her close against him in a post-coital embrace. Her legs finally slide off his neck, leaving his cock buried deep inside her. Blood trickles down her thighs where the dog's rough thrusting has caused abrasions on her delicate skin. She lies motionless beneath him, catching her breath and feeling an overwhelming sense of relief wash over her.

The dog looks at you with his soulful eyes, seemingly understanding your request. He rolls off her and onto all fours, giving her time to catch her breath as he glances back at her invitingly. Her body trembles slightly under the weight of his gaze, a mix of fear and desire coursing through her veins.