Tiny Tim

“Take it, you little slut!” Mom responded, while her hand came back up to massage Ava’s clit. “This is what you’re for! Giving pleasure to your little brother! Like a good big sister should!”

“UUoooohh YES, Mommy!” Ava said, as the verbal stimulation affected her like Mom had obviously anticipated. “I can take it! I can take care of my brother! He can use me as much as he wants! Whenever he wants! However he wants!”

I had experienced Ava’s little girl act in my apartment before. But this time, with her thigh high white stockings, her smaller boobs right next to Mom’s big tits, and her thin small frame right next to Mom’s voluptuous body, really sold it now. I actually felt like I was stealing my little sister’s innocence, instead of playing into my slutty big sister’s fantasies. In no time, I started fucking into her with reckless abandon.

“OH GAAAAAWD! MOMMY! HE’S SO BIG! SO THICK! I DON’T KNOW IF I CAN TAKE IT MUCH LONGER!” she screamed, and it worked again, as I now slammed into her almost violently while Mom’s fingers on Ava’s clit were nothing more than a blur.

“But you have to, Sweetheart! You’re such a good girl, letting your brother wreck your tiny pussy! I’m so proud of my little girl! But don’t worry, even if it’ll be too stretched out when your brother is done with you, I’m sure he’ll keep using you until your insides are shaped into the perfect sleeve for his cock.” Mom cooed, before placing another kiss on Ava’s lower stomach. Then she turned to look at me again, another wicket grin on her face. “How about you, Baby? Are you close? Are you ready to fill your sister’s fertile and unprotected womb with her own brother’s potent seed?”

We heard Ava draw in a sharp breath through clenched teeth, and I felt her walls contract around my shaft.

“Yes, Mom! I’m close to bursting! I want to fill her up so bad!” I panted.

“Then do it, Baby! Come for Mommy! Fill your sister with your hot cum! Get the bitch pregnant with your Baby and claim her! BREED the slut!”

With that, Mom’s head snapped down and her lips engulfed her daughter’s clit. I could see Mom’s cheeks being sucked inwards as soon as her lips connected, and the subtle movement of her jaw told me that she must have been massaging it with her tongue.

“MOOOOMMMYYYYY!” Ava’s ear piercing scream filled the room, and I felt the walls of her canal ripple around my cock. She threw her head wildly from side to side as she screamed in orgasmic pleasure, her body violently convulsing as best as it could with her arms bound behind her back, and I felt her juices spray out around my invading cock.

That did it for me. I slammed myself into her with as much force as I could muster, and erupted inside her. My orgasm was so forceful that my vision blurred and I momentarily lost all strength in my legs. My cock twitched inside her four, five, eight times, before my climax finally subsided. Though, as soon as I pulled out of Ava, Mom leaped forward and started sucking like she wanted to forcefully extract the last few drops left inside of it.

When she released my cock with a loud pop, I felt extremely relaxed. But I knew I wasn’t done yet. The last time I took a Cialis, my erection held on for three hours, and we had barely passed the one-hour mark so far. That turned out to be quite a problem when Mom scooted up to Ava’s head, lifted the sleeping mask off her face, and started laughing.

“She’s out. Totally and completely out. You actually wrecked her, Darling.” she said, before turning Ava onto her side to remove the bindings from her arms. Then she gently stroked her daughter’s hair, softly kissed her cheek, and quietly wished her sweet dreams.

“Uh ... Mom?” I said, trying to get her attention. “That complicates things.”

As Mom turned towards me with a questioning look, her gaze dropped to my crotch almost instantly.

“Oh! Oh my!” she said, eyes wide. “Baby, you already came two times!”

“Doesn’t really matter with those pills.” I said, matter of fact. “They work for a time, not for a number of releases.”

“What!? But with your father, even if he took...” she said, her eyes still wide in wonder, before catching herself. “I mean ... Well ... how long do they usually last?”

“Last time I took one of those pills ... three hours.”

Now it was her eyes that were bugging out. Her head whipped around to the nightstand where her alarm clock stood, and I could see her calculating the time.

“That means...” she let her voice trail off.

“Yep. Good to go for a while longer.” I confirmed with a chuckle.

Suddenly her demeanor changed. Her eyes dropped down to my still throbbing cock, as she chewed on her lower lip. Her fingers trailed up her body, over her stomach, and finally drew circles around her hardening nipple. Then her eyes looked up again, right into my own.

“Baby...” she breathed, while crawling towards me on all fours until she reached the edge of the mattress and got off the bed. “ ... you know, watching you and your sister was affecting me as well.”