I woke up that morning to one of the best feelings in the world: having your cock sucked by your pregnant sister.
I moaned myself awake, naked, half under the duvet, the lower half of my sheets pulled aside so Toni could get access to my cock. I was already at full mast as I groggily came too. I'd been dreaming about pregnant girls again, I always did, but the dream was already slipping from my mind as I felt my sister's tongue caress the tip of my cock.
"Good morning, little brother." Toni grinned. I was on my back, blinking as I awoke. The sun was starting to peak through my blinds. It was morning. I had asked Toni to wake me up before I had gone to bed that night. I had ordered her to be my new alarm clock and she had happily agreed. It meant she got my first load every morning now. I was already lamenting why I hadn't gotten her to do this earlier.
"Great way to wake up." I smiled as I felt her mouth wrap around my cock and begin to bob up and down. "You're the best alarm clock in the world sis."
"Mmmmm," She moaned, half chuckling with a mouthful of cock. She was on her hands and knees before me, between my legs and on the bed. I gathered she must have been sucking on me for a little while as she seemed worked up and was actively blowing me hard. I could tell she really wanted me to cum.
I laid back and just let her do her work. I closed my eyes, feeling her warm tongue wrap around my head. Her hands were now cupping my balls, lightly tugging and squeezing them, which I always liked. She kept a steady motion as she pushed my cock to the back of her mouth, all the way, and kissed my root before pulling back up.
She knew what to do to please me. She knew how to get me off quickly. She'd been sucking my cock for years. But this early in the morning, I was feeling energised.
"Ride me," I told her.
She seemed a little disappointed that she wasn't going to get to taste me down her mouth. But she wasn't in charge. I was.
"Pussy or ass?" She asked. "How do you want to use me?" She popped her mouth of my cock but kept cupping my balls and stroking my cock, keeping me hard.
"Pussy." I said after thinking for a second. "I want to cum in that pussy of yours."
That cheered her up. She scrambled on top of me quickly. That big belly of hers pointed towards my face as she straddled me. She grabbed my cock between her legs, aiming it at her fat pussy. It was already dripping on me. She was so wet.
"Ungh..." She grunted as I impaled her. The warm slickness of her pregnant pussy slid down around my cock. I smiled in delight as I felt myself go balls-deep in Toni. She was heavy as she sat on me, wiggling her hips as she adjusted, the weight of her pregnant body only slightly uncomfortable.
But that all went away as she began to ride me. She leaned forward, her pregnant belly now right in front of my face, as she moved backwards and forwards. My cock slid in and out of her cunt, her pussy juice dripping down onto me, down my thighs, as she moaned in pleasure.
I reached up and grabbed her belly, running my hands across her huge stomach. "You've gotten so big," I told her. I looked up. She was biting her lip, her face crossed in concentration, as she worked herself up and down on my cock. She was close to cumming already. She'd been close just by sucking my cock, being used by me, her little brother. I'd seen that face at least once a day for the past couple of years.
"So big." She moaned. She looked down at her pregnant belly. "Not as big as Jill though."
"Maybe one day, if you're lucky." I told her. I caressed her stomach.
"Mmmmm... that would be the dream." Toni looked over her belly at me. "So much belly for you to cum all over. I'm going to get bigger soon."
"You're going to get so much bigger. I love it when you're in your last trimester." I kept rubbing my hands over her huge stomach. She still had months to go, but I loved the shape of her. All the women in my family suited pregnancy well.
"Oh fuck!" Toni hissed. "I'm going to cum!"
"Cum on my cock sis! Cum on your little brother's cock while I rub this belly."
Toni grabbed my shoulders and began bouncing up and down on me hard. My bed squeaked from the incestual fucking. My pregnant sister cried out as I gave Toni her first orgasm of the day. I felt her juices gush over me once again, soaking the bed. Mum was forever changing the sheets in this house. There wasn't a day at least one of the beds wasn't covered in someone's bodily fluids, typically mine.
"Fuck fuck fuck!" Toni kept crying out, riding me. Her tits bounced up and down, and her red hair fell down from the quick knot she had tied it up in. Her long hair dangled in front of her, swaying backwards and forwards as she kept fucking me hard.
"I'm close," I grunted. She was fucking me hard. And I'd had a whole night to replenish my load. My balls always hurt first thing in the morning as I'd typically gone eight hours without being drained. I always took a dose of SPERMAX before bed to ensure I was full and ready for every day. That meant that the mornings were always the biggest cum of the day for me.
"Do it!" Toni shouted. She kept pounding her ass into me, fucking away, as she passed through her orgasm. "I want my little brother's cum in my pregnant pussy!" The sound of our fucking got wetter as her juices dripped down onto me.
"I'm going to fill you up!" I told her.
"Please! Do it! Fill me!"
I began spurting a massive load inside her. I erupted, a torrent of cum shooting out of me. Both Toni and I yelled our pleasure to the house as we came as one. I felt her pussy tighten around my cock as I shot load after load of my fertile spunk inside her already fertilised pussy. I held onto her belly as I shuddered. For a full minute, I'd been cumming inside her, Toni matching my orgasm to cum as well. She was panting on top of me, sitting on my cock, just enjoying herself as my cock throbbed within her.
"Thank you for using me." She leaned in and gave a long kiss on the mouth.
I kissed her back, feeling my still-hard cock throb within her pussy. I pulled away. "Go find Jill and sit on top of her face. Tell her she's to eat my cum out of your pussy."