She moaned and, although I hadn’t thought possible, sucked even harder on my tip while furiously jerking my shaft into her mouth. She was basically copying what I had done the previous evening, but just as I felt my balls tightening, popped my cock out of her mouth as the pleasure overtook her again.
The first jet placed a long streak of my cum from her forehead, over her nose, to the corner of her mouth. The second placed a fat glob of cum right above her eye before she apparently decided her face was sufficiently painted, and took me into her mouth again. All subsequent shots went right down her throat into her stomach, as she completed the task by smashing her face into my groin. I loved this feeling, but it was not what I told her to do.
“I told you to be a good girl! Now swallow!”
I reached down, placed a hand on the back of her head, and pushed it down so her nose was pressed into my ballsack, as she complied immediately and swallowed over and over again to massage my shaft. I held her head in place for a good minute before the twitching in my dick finally subsided. Even then, I shifted her head from side to side to create some extra friction before allowing her to dislodge my cock from her throat.
I realized with delight that the pill was doing its job and I wouldn’t grow soft in the slightest, despite having my much needed and intense release after making out for so long.
Standing up, I wrapped my arm around her torso and lifted her off the floor and onto the bed. I placed her down on her back, in a way that I would be able to reach the drawer in my nightstand once the time was right. Ava had not yet realized that she was in for a treat that night, or she simply didn’t register that I somehow never lost my hardness.
Kneeling in between her splayed legs, I lined my cock up with her opening so only the first half inch of my tip was pushed inside, grabbed her hips with both hands, and roughly pulled her against me like I had done in the gym. Within half a second, my full length was slammed into her, and she let out a wail of pleasure.
“YES! Take me, little brother! FUCK your sister however you WAAAAANT! I LOVE IT! I LOVE YOU”
“Hmmm, my little princess.” I said, and the effect it had on her was imminent. I had called her ‘Princess’ for years, but it was always an expression of contempt at how spoiled she was. This time, however, there was no notion of that when I said it. It was more the way a father addresses his little girl, and she loved it! Seeing this, I quickly reached over to the nightstand and unlocked my phone.
“YES! I’ll be your little princess!” she suddenly used a little girl’s voice. “Your good girl! Your good sisterly fucktoy! Just FUCK me! TAKE your little Princess! I’ll do anything to make you love me!” she moaned.
“Really? Anything?” I asked, a devious grin spreading on my face, as I opened the app on my phone, and activated the vibration-feature of the buttplug I had placed in her.
Her eyes widened to the size of saucers, her mouth hung open, and her pupils dilated, as her entire body clenched around me. It was not just her pussy that suddenly pressed around my shaft, but also her arms and legs that had wrapped around my torso. I think none of the others had ever fucked her while she had a vibrator up her ass. As soon as the thing started rumbling, I forcefully slammed myself into her, ripping my way through her resisting tunnel. I could be wrong, but as she suddenly clamped down on my cock harder, increasing the pleasurable sensations for me even further, it made me believe she had another orgasm.
I didn’t know how it would feel for her. I knew it would feel fucking great for me, and I wasn’t disappointed. The subtle vibrations carried through the tissue of her body and reached my cock, while my balls felt the vibrations directly as they rested against the part of the plug that stuck out of her. She seemed to enjoy it tremendously, as she suddenly found her voice again and screamed in bliss.
“GAAAAWD YEEEES! EVERYTHING! FOR YOU! I’LL DO EVERYTHING FOR YOU! JUST DON’T EVER STOP FUCKING MEEEEE!”
This was it. Now came the part that would either make or break this whole exercise. I started fucking her again, slowly at first as to not overwhelm her senses, and leaned forward so my face was right next to hers.
“And what if I want my little Princess to have my baby?” I whispered into her ear. She grew still, apart from the ripples that traveled over her body whenever I slammed into her. “What if I want to knock my sister up?”
“OH GOD! ... Tim ... We...” she stammered white moaning.
It seemed like she had trouble grasping the situation and forming coherent thoughts, though I suddenly remembered the way she reacted the first time we fucked. Back then, I had proclaimed that I would come inside her regardless of whether she was on birth control, and she instantly exploded into an orgasm.
