Days went by, and one morning...

I woke up to the unmistakable sounds of pleasure. The rhythmic slapping of flesh against flesh and the occasional muffled moan filled the air. I sat up in bed, groggy and disoriented, trying to piece together what was happening. My eyes darted around the room, searching for the source of the noise. And then it hit me.

Grandpa was fucking her. Again. It seemed that ever since he had moved in, he had taken it upon himself to claim her as his personal cum dump. He was pounding into her, his massive erection stretching her out further than I ever could, his face a mask of lust as he took her.

My heart ached as I watched them together. My girlfriend, who I loved more than anything, was being used in such a brutal and unforgiving manner. I wanted to cry out, to beg them to stop, but I couldn't find the words. All I could do was watch, helplessly, as she arched her back and moaned in ecstasy beneath his thrusts.

The room seemed to spin around me as I tried to comprehend what was happening. My grandfather, the man I had looked up to all my life, was violating my girlfriend in the most intimate way possible. He was treating her like an object, a piece of meat designed for his pleasure. It was as if he was trying to erase every memory of her as my girl, and replace it with the image of her as his personal fuck toy.

"You like feeling my big cock inside you, you worthless peace of trash. You're just a cheap whore." he growled, his voice rough and demanding. "Well, here's something you'll really like." Grandpa turns her on her stomach and positioned himself between her legs, his thick, veiny member at her anus.

Carrie whimpered, her body tensing at the foreign intrusion. "Oh, God... Please..." she begged, her voice shaking with a mixture of fear and arousal. Grandpa's rough hands gripped her hips, forcing her to accept his massive cock as he began to thrust into her ass.

I could feel my own cock twitch in sympathy, throbbing in my hand as I stared in disbelief at the scene before me. Grandpa's thrusts grew faster and harder, his heavy breaths filling the room as he tries in vain to push his dick all the way in Carrie's ass.

"Yeah, take it!" he grunted, his massive arms bulging as he held her down. "Take it all, you dirty whore!"

Grandpa's thrusts became brutal and relentless, his cock stretching and tearing at her ass with each forceful invasion. He slapped her round, firm butt as if he were trying to punish her for being so tight. His grip on her hips was painful, but she knew better than to try and pull away. The pleasure was too much to bear, even as his cock ripped her open and made her scream in agony.

"That's it, you little whore," he growled, his breath hot against her neck. "Take my cock. Take it all." He began to move faster, his hips slamming into her, his cock threatening to split her in two. She felt him growing inside her, his seed building up, ready to explode.

Her own body betrayed her, responding to his brutality with an almost overwhelming wave of pleasure. Her legs trembled, her back arched, and her hips bucked against him, **** for more. "Oh, God, Grandpa," she moaned, her voice shaking with the effort to stay silent. "Please, I can't take any more."

Grandpa growled in reply, his grip on her hips tightening to the point of pain. "You'll take it all, and you'll like it," he grunted, his breath hot against her neck. "You're mine now, and I'll make sure you remember that for the rest of your life."

With one final, brutal thrust, he slammed his cock all the way into Carrie's ass, her sphincter finally giving way under the pressure. A sharp pain shot through her body, followed by an intense, almost overwhelming sensation of fullness. She screams of the too of her lungs. Grandpa groaned, his body shuddering as he released his seed deep inside her.

She felt his cock twitch and pulse, spraying his hot cum across her insides, filling her up and marking her as his property. Her own body responded in kind, her walls convulsing around him as she climaxed, her juices mixing with his semen and coating the inside of her ass.

Grandpa's weight pressed down on her, his body trembling as he fought to catch his breath. For a moment, they were still, their bodies intertwined and slick with sweat and each other's fluids. Then, slowly, he withdrew from her, pulling out with a wet, sucking sound that made me shiver.

"There's my girl," he said, patting her on the head as if she were a well-trained dog. "Now she's mine." smirking at me.

Carrie lay motionless beneath him, her body still trembling from the intensity of their encounter. Her ass glistened with sweat and his cum, and she could feel the weight of his approval pressing down on her. She didn't dare meet my eyes, afraid that I might see the mixture of shame and desire that still lingered there.