Oh Dear....

The shaking subsides and the sound of slapping flesh comes to and end as your energy leaves you as soon as you come down from your insane wild ride. You tremble and shiver from the after glow that has now rolled over you as you collapse on Gwen's chest. Gwen , still breathing heavy , had the look of pure shock on her face as she realizes what just happen. Gwen's cock had finally slowed down its eruption and the cum has now resorted to a tiny trickle and had begun to grow soft.

'..Why is Gwen soft all of a sudden?' you ask yourself. You soon shifted your weight and felt how extremely full and wet you were. Your pussy still sensitive from the orgasm started to leak something around your sister soon to be flacid cock. You reach below in between the both of you and feel what was going on. When your hand returns you fingers were wet with thick white goo . Just then Gwen yells at you in a fiery fashion.

“What the FUCK John! You never got off of me. I TOLD YOU TO GET OFF! I CAME INSIDE OF YOU....NOW WE ARE GONNA BE STUCK LIKE THIS FOREVER!!!” Gwen screams and finally pushes you off. You were still confused until you hit the bed and felt the rest of Gwen's cum pour out of your overfull pussy. It finally hits you as you look down and see that the white liquid on your hand was your sisters cum. You take a closer look and notice how messy and sticky you really were. Your pussy had that freshly fucked look as it was still parted. Cum had started to ooze out and drip downward as strains of cum had stuck to both sides of you thighs and pussy lips. You look at Gwen as she too had her cock , glistening from your juices, was still slightly dripping with a pool of cum on her waist from what had dripped out of you. You start to panic.

“Oh shit...shit..SHIT!” You reach down and try to scoop out cum in a failed attempt to recoup your mistake. This just caused the rest of the massive load to dump out and collect on your hand and the bed. You frown at the defeat and I look down and see more thick cum collecting in between you legs. You had just fucked your sister and had a massive load pumped into you. Just then the phone rings. You answer it and the familiar voice greets you.

“Oh my my my you certainly didn't waste time this morning. Not even 10 'o'clock and you already managed to put a load inside you new womanhood. I have to say I am impressed you lasted this long. Sadly you did not make it and thanks to the crazy potent cum I made you sister have, you can get used to those bodies because they are yours to keep. Take care John, Or should I say Sarah.” And just like that the phone call goes dead. You are left with a pussy full of cum and shock knowing undoubtedly you had been knocked up.