Disclaimer: I own nothing, except the plot.

"I win!" shouted Lizzie as her cards lay face up, adding to twenty-one.

Her nine year old face shone brightly, but quickly turned angry as Casey said that it was bedtime for her and Edwin.

"How come? You and Derek get to stay up late! And besides, who left you in charge."

"Mom and George did. Now get to bed!" Casey said. Her eyes lit up with something that Lizzie did not recognize.

"It's only ten o'clock!" shouted Edwin, but Derek's glare shut him up.

"Fine!" Lizzie shouted as she stormed up the stairs. Edwin followed. Two doors were slammed, but the two teens left in the living room had no eyes for anything but each other.

"I thought they'd never leave," Casey said breathlessly through kisses.

"Neither Did I," was Derek's answer. He was too horny to let out more.

XXX

I pulled up her camisole and ran my hands over her smooth, flat stomach. Thank GOD no one knew what an awesome body she had besides me! She moaned against my mouth as I undid the clasp of her bra. I really hated those things. They just ended up getting in the way.

I heard her sigh as I ran my fingers over her hard, pink nipples. Oh yeah, the Canadian cold is AWESOME!

As she undid my jeans, I pulled down her pajama pants. She wasn't wearing underwear. Hell Yeah!

I placed her small body on the ground as she moaned and giggled. I lowered my mouth to her warm, wet pussy. Her soft curls tickled my nose as my tongue stroked her cunt. She smelt wonderful, and her salty sweet taste was driving me wild. Her hands tugged my hair as I sent her into oblivion. She moaned my name as she came, and I kissed her to quiet her. She tasted herself on my lips as our tongues fought.

Slowly, she lowered her hands to my boxers. Wait…what? She had never given me head, and I hadn't asked for it.

"Case, babe, what are you doing?"

She smiled sweetly as she said "Payback."

I am so turned on right now.

Her hands stoked my hardened 'little soldier' (can you say eight and a half inches? Hells yeah!)

She touched the tip of her tongue to the slit at the front of my erection.

I moaned loudly, and I felt her smirk against me. Hey, she can't take my smirk!

Well, if she keeps doing this she can. Shit! Where did she learn this? Her mouth rides up and down my cock, and her round tits bounce with her. I feel my muscles contract as pleasure sweeps through me and I come in her mouth. She swallows, much to my surprise.

Heh…my first blowjob is from my step-sister. Who woulda thunk? Actually, every first except for the big one and kissing has been with Casey. The big one was because it hadn't happened yet. Yeah, I know you're all in shock. Get over it!

Casey lies on my chest as I calm down from my last orgasm. I swear that the girl could make me come with just one look!

She stares up into my face.

"Derek? I think I'm ready. We've been 'together' for about nine months now. I'm ready for the next step."

You guess if I'm going to turn that down. Come on…just guess.

"Are you sure? Are you safe?"

Casey laughed. "Of coarse I'm sure! And I've been on the pill for a year now. It's fine."

Deep Breath.

Okay, nothing to worry about. You're about to have sex with your girlfriend, who happens to be your step-sister. Don't freak!

That's when I heard a creak on the stairs.

Lizzie and Edwin looked back to our naked forms, wide-eyed and in shock.

Casey screamed.

The lock in the door juggled as the people on the other side attempted to enter.

Parents are home.

Fuck!

R&R!