Tim looked down at Sophia after she covered her breasts from the slap. His expression was cold and controlling. He spoke in a firm tone that left no room for argument.
"Did you forget I'm your master? Just do whatever I say."
Sophia looked up at him with submissive eyes. Her face was flushed, and there was a clear hesitation in her expression, but she didn't argue. After a short moment, she slowly moved her hands away from her breasts and placed them back down at her sides, leaving her heavy tits completely exposed to him once again.
"I'm sorry, Master," she said quietly, her voice timid and soft.
Tim didn't say anything in response. Instead, he reached down and grabbed both of her breasts with his hands. He squeezed them roughly, pressing his fingers deep into the soft flesh. A thin stream of milk suddenly spurted upwards from her nipples because of the pressure. More milk leaked out and began running down the curves of her tits, dripping around. Sophia let out a small, shaky breath as he continued squeezing her breasts.
I watched everything from the floor. The way Tim was treating her body so casually, like it belonged to him, made my chest feel tight. At the same time, my cock was throbbing painfully inside my pants. Seeing my sister being handled like this was doing something to me that I didn't want to admit.
Tim kept squeezing her tits for a few more seconds before he spoke again. "Now say it."
Sophia hesitated. She looked up at him with uncertain eyes, clearly knowing what he wanted her to do. Her cheeks were burning red. She stayed quiet for a few long seconds, her breathing uneven. Then, finally, she opened her mouth.
"Mooo~"
The sound came out softly but clearly. She made the cow noise just like he ordered, her voice carrying a shameful tone. The moment the sound left her lips, Tim started laughing.
"Hahaha! You sound so funny," he said, clearly enjoying her humiliation.
My cock was now painfully hard and trapped inside my pants. I couldn't take it anymore. Quietly, I reached down and pulled my cock out to relieve some of the pressure. I sat there on the floor with my erection in my hand, watching as Tim played with my sister's massive breasts and forced her to make animal sounds.
Tim was still laughing for a moment before he looked down at her chest again. He moved his body forward slightly and placed his hard cock right between her breasts. Then he grabbed both of her tits from the sides and pressed them together, trapping his cock between the soft, warm flesh. He squeezed them tightly around his shaft before letting go.
"Hold it tight and keep squeezing it," he told her.
Sophia hesitated for only a second before she reached up with her own hands. She grabbed her heavy breasts and pressed them together from the sides, just like Tim had done. Her soft tits wrapped around his cock completely, holding it in the warm space between them.
Tim started moving his hips. He thrust forward slowly at first, sliding his cock between her squeezed breasts. The swollen head of his cock kept pushing out from her deep cleavage and rubbing against her chin with every forward movement. Sophia kept her breasts pressed tightly together with both hands, obediently holding them in place for him as he used her body.
I stroked my own cock slowly while watching. The sight of Sophia lying on the bed, holding her own massive tits around Tim's cock while he fucked them, was making my head spin. Her heavy breasts jiggled and shook with every thrust he made.
Tim was kneeling over Sophia's soft, naked body on the bed, his thick and hard cock sliding back and forth between her massive, pillowy breasts.
Her pale skin was flushed, a light sheen of sweat covering her chest. Every time Tim thrust forward, her massive breasts jiggled and rippled around his cock, the soft globes bouncing heavily with the motion. Thin streams of milk were still leaking from her stiff, dark nipples, slowly running down the curves of her breasts and mixing with the pre-cum that was already smeared across her skin.
Sophia's face was red with embarrassment, but she kept her eyes on Tim's cock as it slid between her tits, almost like she was focused on doing a good job. Her breathing was shaky, soft little gasps escaping her lips every time the head of his cock pushed up toward her mouth.
Tim looked down at her with a wide, smug grin, clearly enjoying both the feeling and the sight of his cock disappearing between her huge, soft breasts.
"Fuck… your tits are so fucking soft," he said, voice filled with satisfaction. "They're like two big warm pillows. Keep squeezing them just like that."
Sophia's hands trembled slightly as she pressed her breasts tighter together for him, doing exactly as she was told. Her fingers sank into the soft, heavy flesh, trying to keep them wrapped snugly around his thrusting cock.
I sat on the floor near the bed, watching everything. Stroking my cock, throbbing painfully as I stared at the obscene sight of my gentle older sister letting this little bastard use her tits like a toy. The wet, slippery sounds of his cock sliding between her breasts filled the room, mixed with her soft, shaky breathing.
Tim glanced at me for a second, that same arrogant smirk on his face, before looking back down at Sophia.
"You like this, don't you?" he asked her, still thrusting between her tits. "Having your master's between your big milky tits?"
Sophia's face burned even redder. She didn't answer at first, just kept pressing her breasts together while he fucked them. After a few more thrusts, she finally spoke in a small, embarrassed voice.
"…Y-yes, Master," she whispered.
Tim's grin grew even wider. He reached down and grabbed both of her stiff, leaking nipples between his fingers, pinching them hard enough to make her gasp. Milk squirted out onto his fingers as he tugged on them.
"Say it louder," he ordered. "Tell me you like your Master's cock between your tits."
Sophia's voice came out shaky and breathless. "I… I like Master's cock between my tits…"
Tim let out a satisfied laugh and kept thrusting, faster now. The wet, sloppy sounds grew louder as his cock slid more easily between her soft breasts. Pre-cum was leaking from the tip, smearing across her skin and mixing with the milk that kept dripping from her nipples.
I clenched my fists on my lap, watching as Tim used my sister's body however he wanted. The worst part was how obedient she was being. She wasn't fighting it anymore. She was pressing her tits together for him, letting him pinch and pull on her sensitive nipples, calling him Master like it was natural.
Tim suddenly slowed down his thrusts and looked down at her again.
"Open your mouth," he said.
Sophia hesitated for only a second before parting her lips. Tim pushed his hips forward until the head of his cock pressed against her mouth. She opened wider and let him push the tip inside. Her lips wrapped around the head as he gave a few shallow thrusts into her mouth while still keeping his cock mostly between her breasts.
The sight made my stomach twist with a sick, heavy feeling of jealousy and arousal.
Tim pulled his cock out of her mouth after a few seconds, leaving a string of saliva and pre-cum connecting her lips to his tip. He went back to fucking her tits with longer, harder strokes.
Sophia's breathing was getting heavier. Every time his cock pushed up between her breasts, she let out a small, shaky moan. Her thighs were rubbing together restlessly, and I could see how wet she was getting between her legs.
To be continued...
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