Going downstairs to help your step sister.

Before you go you make sure to take a mental picture of your mom, her hair tousled from sleep, her skin glowing in the morning light, her curves accentuated by her tight tank top and high-waisted shorts. You commit this image to memory, not fully understanding why it resonates with you so much.

As you head downstairs, you can hear the soft clink of dishes in the kitchen. You see your step sister in the kitchen.

Caitlyn is wearing the same black lace robe that your mother had on yesterday. The sight of her standing there in that revealing garment sends a jolt of electricity through your body. You feel your face grow hot as you try to keep your eyes from wandering over her curves, barely contained by the delicate fabric. The contrast of the dark lace against her soft skin is mesmerizing.

Caitlyn notices your gaze and smirks, turning to face you fully. The slit in the robe reveals a tantalizing glimpse of her thigh as she moves. "Good morning, sleepyhead," she purrs, her voice low and seductive. "Did you sleep well?"

You swallow hard, trying to find your voice. "Yes I....did" words come out of your mouth while you are trying to gather yourself. "What about you?" you follow up.

"Yes, I slept very well," Caitlyn says, taking a sip of her coffee. She sets the mug down on the counter, then leans back against it. The robe slips off one shoulder, exposing more of her creamy skin. "The jet lag wasn't too bad." She looks you up and down, her eyes lingering on your pajama-clad body. "You look adorably rumpled, little brother," she teases.