Kathy and Paula whispered something and giggled. Then to my utter disbelief, Paula laid back while Kathy swung around to get into a sixty-nine position. I held my breath knowing that a wild fantasy of watching two girls was about to come true. Suddenly Paula's face came up and I saw her tongue dart out to lick my sister's drenched pussy. Kathy let out a soft sigh of approval as her face came down to return the favor. I saw Kathy's tongue slip into Paula's waiting snatch. Finally, I began to breathe again. Both of them knew what they were doing. They had obviously done this before, however, I was absolutely certain I was their first audience, and probably the last.
Needless to say, my spent cock erected instantaneously. Both Kathy and Paula had several orgasms and it looked like they would never stop sixty nining. I think they got so wrapped up in what they were doing that they forgot about me. Finally I broke their spell by moving my erection between Kathy's mouth and Paula's pussy. Kathy gave my cockhead a kiss then spoke.
"Give it to her! I want to watch like this...the view is perfect!"
I reached down around Paula's waist and pulled her up into a better doggy position. She ground her pussy against my shaft in response. I felt a hand guiding my cockhead. I knew it had to be my sister. When I felt Paula's opening yield to my cockhead I leaned back for a better angle then I slid my cock in. She was tight, very tight, but she was also wet enough to take anything humanly possible. With a moan of pleasure I fed her more and more cock. Suddenly I felt a slight popping sensation around my cockhead. A heatwave washed over my size while some kind of inner suction literally pulled me in to the hilt. I gasped in surprised pleasure. Unless she was fucking two-inch pencil dicks, Paula had been a virgin just seconds ago.
"OH GOD!" Paula moaned. "OH GOD...OH JESUS!"
"I'm sorry." I froze. "I didn't know. I would have taken more time. I didn't mean to hurt you."
"JESUS......FUCK ME!" Paula began to move against my impaled shaft.
"Huh?" I was confused. I never had a virgin before. "It doesn't hurt?"
"Hell no.....It feels so damn good. I never dreamed I could feel so full of hot cock. Please, FUCK ME!"
I didn't waste anymore time. I began to fuck Paula's virginal pussy with long slow thrusts that caused us both to moan loudly. Kathy, in the meantime, was getting the sight of her young life. I pushed Paula's face back to my sister's pussy. She took the hint. While I fucked Paula I watched her tongue work Kathy's pussy over. I was already fucking some of the best pussy of my life, but I already knew there would be more just as soon as I finished. As if she could read my mind, Kathy fueled my incestuous thoughts by licking and sucking my balls. When Alison came on my cock it was like an explosion. Her whole body was racked with violent contractions that let her breathless. I slipped my cock out of her hole and pulled my sister up to her knees.
We embraced in a wet kiss. Our tongues explored every crevasse of our oral cavities while our hands explored everywhere. I felt like a blind man touching for the first time. I explored her pussy with gentle strokes then I traced my fingers up to where we could both lick and taste her flavor. With a giggle she fell back pulling me on top of her. As if it was destined to happen my huge cockhead landed at her entrance. Both of us sighed when I pushed my size into her velvety tunnel. I teased by fucking her with just the tip of my cock. I popped in and out several times. Her depths beckoned unlike any I had ever encountered, but I remained in control of the situation. Finally I pushed in a little deeper. Finally, at the halfway point I felt the wall of resistance. As I suspected, my sister was giving me her virginity too!
"DO IT......FUCK ME!" Kathy folded her legs back.
I leaned back and forced my knees under her thighs on either side of her ass. The sight of my enormous shaft sticking out of her opening was wanton to say the least. Fighting the urge of just ramming myself in like we both wanted, I reach down with a hand to rub her engorged clit.
"OH GOD.....THAT'S NICE......THAT FEELS SO GOOD!" Kathy's whole body thrashed. The pulsations were centered around my erection. "DON'T STOP......I'M GOING COME!"
True to her word I felt my sister's pussy come to life all around my manhood. The muscles contracted and twitched wildly while wave after wave of cream gushed out. I backed out until just my cock head was left inside. Kathy bucked and gyrated for more cock while her orgasm peaked. Just as it was beginning to end I rammed my shaft into her with forceful anticipation. I felt myself bend as I struck her virgin barrier. Just when I thought my cock was about to snap in half she gave way. I sank to the hilt with a moan. Her depths were searing hot.
"FUCK HER." Alison moaned. "Show her how good it feels to get it by a stud like you."
Neither Kathy or myself needed the encouragement. We were both moving both Alison finished speaking, however the reminder that she was there and watching made our pleasure that much better. Fucking a sister for the first time is probably the most exciting thing a guy can do, but then doing it while another girl cheers you on is a whole new world. I fucked Kathy long and slow. My cock took full thrusts in and out of her tight, wet hole. When she came I took a few minutes to eat her orgasm. After I licked her hole clean I plunged my cock back into the hilt.
Soon I was nearing my orgasm so I rolled onto my back. I pulled Alison's snatch to my mouth while Kathy mounted me. I filled my sister's pussy while I ate her bestfriend's pussy. I had the explosion of my life. I didn't think I'd stop cuming. Shot after shot of cum pounded up into her forbidden hole and I didn't even care if she was on the pill or not. She obviously felt the same because rode my cock until it shrank into a fully satisfied state. The three of us laid there for almost an hour touching, fondling, and talking. Finally we got to our feet and made our way back to our respective houses and beds.