And her whole body started violently shaking as a continuous moan filled the room.
That ripped Mia out of her trance. By what I saw in her expression, it was clear that she had made up her mind about all of this, and now she wanted to join in. She jumped up, lay on her back in front of Ava, and spread her legs wide. Then she grabbed Ava’s hair and shoved my sister’s mouth into her pussy.
“Keep going, Muffin!” she commanded, before shifting her attention back to Ava. “Now eat my cunt, Babygirl! Your brother’s going to violently ram his fat hard cock into you until you make me come! But you better hurry up, because if you come before me, I’m going to torment your pussy until you scream as punishment!”
And with that she grabbed Ava’s head with both of her hands again and started smashing her face into her pussy. Ava, once again, was eager to please, though it was hard for her.
“AAAAARRGH! INTENSE! TOO INTENSE!” Ava screamed as she removed her mouth from Mia’s pussy for a second, but Mia was just as merciless as I was and simply pulled Ava’s face back into her folds, choking off her growling.
I kept pounding away as hard as I could, and soon felt the telltale signs of my own orgasm.
“Oh fuck! I don’t think I can go on much longer!” I warned them.
“You hear that, Babygirl?” Mia taunted. “If you don’t put some effort into this and make me fucking come, your own brother is going to flood your insides with his spermMMMMMMM OOOHHHHFUUUUUCK!”
Apparently that had sent Ava into overdrive, and she used every trick she knew to make Mia happy.
“OH GOD! MUFFIN! She LIKES the idea! The little slut WANTS her brother to come inside her!” Mia moaned, apparently just as turned on by the idea as Ava and I were. “Would you like that, Muffin? Unloading inside her? Shooting into your sister? Paint her walls, Stud! Do it! DO ITTTTTT! YEEEEEEEESSSSS!!!”
And with that, Mia erupted in her own orgasm. She thrashed around as her whole body spasmed, her legs jerked, and her chest trembled. Ava kept sucking on her folds throughout the whole ordeal.
When Mia came down from her climax about a minute later, she sat next to us and pushed her hand underneath Ava’s body. Her hand found Ava’s clit and started viciously rubbing it.
“NO! NO! NOOOOOOO! TOO SENSITIVE! PLEASE!” Ava pleaded, but Mia simply placed her hand on Ava’s neck to keep her head pressed onto the floor, while she kept on tormenting my sister’s clit in addition to my relentless pounding. Suddenly, Ava released another scream and her juices started shooting out of her, squirting like the first day the two of us shared my bed, drenching my lower body and Mia’s arm.
And that was finally too much for me. My balls tightened, my back muscles tensed, and I groaned loudly as I slammed into my sister as deep as I could before shooting jet after jet of my hot cum directly into her womb. I kept myself buried inside her until my cock stopped twitching, while Mia never ceased stimulating Ava past her limits.
After roughly thirty seconds, Ava simply passed out and her upper body collapsed to the ground and slid forward, causing my cock to slide out of her with an audible “Plop”. When her body stopped sliding over the floor, her ass was still slightly raised, so her pussy was put on display and we could see it still convulsing.
Mia wasted no time, and as soon as she saw my cock covered in my sister’s juices, took it into her mouth to clean it up.
“Oh God! Muffin!” she moaned between sucking me and taking deep breaths. “I can’t believe you just creampied your own sister ... Making her squirt... “ suddenly her voice morphed into a growl. “And I fucking loved it!”
As she said that, she dove down to push her face in between my unconscious sister’s limp legs, and started loudly sucking my cum out of Ava’s dripping pussy. I could hear the slurping sounds while Ava’s legs started twitching like someone was lightly electrocuting her.
Somehow, this stopped me from getting soft. This whole situation was just too much, too surreal, too intense.
When Mia had finished cleaning my sister, she simply jumped onto the mattress and pulled me on top of her, causing me to fall in between her widely spread legs. We kissed for a long time, as I rubbed my hard length against her sopping wet center.
We noticed Ava stirring, and Mia motioned for me to help her up onto the bed.
“You want to see the cock that made you come?” she asked Ava. “Yes? You want to see it stretch me out as your brother shoves it into me now?” And when Ava nodded again, Mia reached out to pull the sleeping mask off Ava’s head.
Ava immediately grabbed my cock and pulled me into Mia, just like Mia had done before. But instead of then simply watching as I fucked into that readily waiting hole, Ava returned yet another favor by also pressing one hand flatly onto Mia’s lower stomach, while placing her other hand on Mia’s clit, rapidly massaging it in a circular motion while I fucked away.
Mia’s eyes rolled into the back of her head as Ava hooked her free arm into one of Mia’s legs, and pulled it further upwards to give me even better access. I slammed into my girlfriend with increasing speed and force, trying to meet Ava’s intensity in pleasing Mia. Now it was Ava and I who relentlessly worked on Mia’s pussy until, after merely five minutes, she couldn’t bear it anymore. Needless to say, we refused to let up.
“OH GAAAAWD! I LOVE YOU! I LOVE YOUUUUU!” Mia screamed as she exploded into her own orgasm, and finally collapsed just like Ava had before.
But I wasn’t done! I was so close to coming again! I just kept fucking my girlfriends limp body until I felt my balls tighten again. Then I grabbed Ava by her hair, pulled her head down so it lay sideways on Mia’s lower stomach, pulled out of my girlfriend, and started shooting my second load of the evening into my sister’s open mouth.
She swallowed everything. Even the last spurt that wasn’t forceful enough to reach Ava’s mouth and instead landed square on Mia’s sex. My big sister simply extended her tongue and sensually licked my cum off my girlfriend’s pussy, all the while looking deeply into my eyes!
When I was done, I fell onto the mattress myself. With the last of my strength, I pulled the two sexy girls against me, so we could cuddle up in complete satisfaction.
As we lay there, I finally got it. I finally understood what Ava had done.
Not once during the whole three months of buildup to this situation since I learned about Ava’s sleeping problems, did she initiate anything between the three of us. She had always acted pensively and timidly, seeking Mia’s permission for everything, and making a great show out of displaying how new all this was for her. Tomorrow, Mia would be sure that she was actually the one who pushed me towards fucking my sister for the very first time. There was no danger of her freaking out now. I could have a girlfriend that was perfectly content with me fucking my family members.
I wasn’t too sure if I was allowed to be happy about that, since it meant that Mia was tricked into this. Kinda, at least. Did it even matter, though? Sure, if we had straight up told her about everything that had happened between Ava and me from the beginning, chances are she wouldn’t be here right now. But then again, given how eager she was to support Ava in her pursuit of me, and how much she herself risked pushing me towards accepting a sexual relationship with my sister, she could just as well have accepted it.
As if she could sense my thoughts about her, I heard Mia mumble a sleepy “Love you two”, and saw Ava regard me with a warm smile.
That got me thinking about my sister. I did notice how much better my school life had gotten. Looking at it objectively, a change like that was unlikely to happen simply because of a video showing me getting shot, and it happened way too fast to just be caused by sharing my lunch table with the cheerleaders. So, I was fairly certain that what Mia had told me about Ava’s quest to raise my popularity was true. She did stand up to the other cheerleaders right in front of me, after all. And she was the first to take my side when Aaron emptied my bank account.