Play time is over

She knew I was watching. Gina smiled. Then she licked her lips 
and moaned. My cum-trail broke, melting into her tongue. The nipples 
pressing into my thighs were upright and urgent now, denting my flesh 
with their rubbery hardness. 

"Jeez, Gina," I whispered. "Are we really doing this? It's not 
another dream, is it? I can't really believe that we're finally doing 
it. I've wanted to fuck you for so long." 

"Me, too, honey, but not right now," she said, her tongue 
slipping out to swipe over the magic inch just under my piss-slit. "I 
want our first fuck to be nice. You're too hot right now. Let me get 
you off. I love giving head, anyway. Let me make this one in my mouth; then you'll last longer when you get inside my pussy." 
Gina stopped talking. She was too busy for speech. Opening her 
mouth, she dropped down all around my jerking length. 

"Ooooh," I groaned. 

My big sister was sucking on my prick --- not just sucking, but 
making love to me with her mouth. She had told me that she loved 
giving head, and now she was proving it. She opened wide, taking more 
than half of my throbbing thickness between her nibbling lips. The 
silky smoothness of her lips slid up and down, ovaling over my hard- 
on. Inside her sweet mouth, that teasing tongue of my sister's was 
flicking wildly, never stopping as she started bobbing her head up and down. She bathed every inch of my aching hard-on with her sweet 
tongue as she sucked and slid her lips around my purple-headed prick. 
I tried to stay still, but I had to push my cock up, driving it 
into her mouth, practically fucking my sister's face. 

Gina purred, pumping her head in time with my thrusts. 
I watched my older sister's pretty face as she worked her magic 
around my raging hard-on. She really enjoying this. Gina licked and 
nibbled and sucked over my prick, moaning deeply in her throat every 
time I jerked from her lewd attention. The hotter she became, the 
further my hard cock seemed to sink into her mouth. I felt the rubber 
back of her throat, thinking that I was as far in as I was going to 
get. However, one more moan, and the head of my boner slipped down 
into the milking wonderland of her throat. 

Gina was right about one thing. I was too hot to last. Gina 
must have known. She pulled up, freeing my prick from her throat. 
Her pretty face twisted with lust as she started bobbing up and down 
faster. Her snake-like tongue was back, doing things to my raw nerve- 
endings that were heavenly. Her hand was cupping my balls, urging the 
hot cum that was building inside them. 

I tried to warn Gina that I was coming, but she only moaned and 
tightened her grip around my balls. When I came, she stayed with me 
right through the shuddering blast. She took it --- right in her 
mouth! That only made me come more. 

Gina slurped up every drop, even licking the small amount that 
had escaped onto my belly. Again, she surprised me. She didn't stop; 
if anything, she started doing even sexier things to me. Her fingers 
dropped under my balls, massaging my asshole. And then her heavy, 
grapefruit-sized tits were back, dragging up over my cock. 

"Stay hard, baby," she groaned, her flushed face showing me just 
how hot she had become. 

Shit. After hearing that, I was willing to bet my cock wouldn't 
go down for a week. I pulled Gina up. She rolled with me, falling 
to position easily. My own sister parted her legs for me. She 
opened, and then I was pushing inside, slipping into that oozing 
tunnel of pure delight. My first stroke filled her, long and deep and 
tight. Gina was moaning into my ear, urging me to fuck her --- to 
fuck her harder, deeper, faster. 

My arms went under her upraised legs. She pushed up on my chest 
to tell me what she wanted. I propped my sister up, preparing her for 
the pounding fuck that I knew she wanted. 

"Like this?" I gasped, wanting to please her so much. 

"Yes!" she hissed. "Fuck me, Justin! I've been wanting this for 
so long. Ooooh, fuck me!" 

As I was stroking my still-hard cock into Gina, I thought that 
this was the best that sex could possibly get. She has since taught 
me several little tricks that proved just how wrong I was. However, 
right then, I was in heaven. I could see her pretty face responding 
to everything I was doing to her. My long, slow strokes built her 
passions. When I hit her hard and fast and unexpectedly, she 
shuddered way up inside, her inner charms rippling along the full 
length of my buried boner. 

"I'm coming, baby!" Gina screamed aloud. "God, I'm coming!" 

I had been fucking my sister, but her climax changed that. 
Suddenly she was fucking back at me. She squirmed around, ending with 
her hands gripping my biceps. Her feet were flat on the couch beside 
my hips. As she fucked up to me, her cunt was like a velvet glove 
coated with the slickest lubricant. She milked around me, the wicked 
smile on her face telling me that it was on purpose. 

"Mmmmm," moaned my nasty big sister. "You like that, baby? My 
little brother likes his sister's nice, tight pussy?" 

I had stopped moving. I was pressed up as if at the top of a 
push-up. Under me, Gina was anything but still. She was wild. She 
squirmed and shivered, working every muscle in her luscious, young 
body for my enjoyment. She fucked up to me, trying to screw her 
entire body up over my aching hard-on. 

"Come," she purred. "Shoot off inside me, Justin. I'm safe. You 
don't have to worry. Don't pull out. Oooooh, God! Let me feel it. 
Let me feel your hot cum, baby." 

The hot wetness of my sister's soul was bubbling out around my 
prick. I'd just blasted off in her mouth a few minutes before, but 
her naughty words were making my cock jerk again. I started to stroke 
in and out of her silky hole in time with her upward thrusts. 
Even with this first fuck, Gina knew the perfect thing to do --- 
for both of us. She pulled me forward just enough to put the sawing 
ridge of my prick over her swollen clitty. In seconds, she was 
coming. I was behind her by about two strokes. That fiery, pink 
slash between her legs sucked the juice out of my body. I came so 
hard that little lights burned into the back of my closed eyelids just
as I collapsed over her panting body. 

Gina is still living here, her short visit turning into something much more permanent. Gina signed up for summer school. By fall, she'll be caught up with me. 

From what I can see, her grades are going to be a hell of a lot higher than mine, too. No one thinks anything about my sister living with me. They figure that she's going to help me with my classes. They're probably right.