I eat in the living room.

I'm mostly through the new episode on my favorite streaming app when I hear Christa calling my dad's name and baby whining she's hungry. All I can do is shake my head in disgust at her, not believing dad actually married a vapid woman like her, though no I can understand why she's hot in a fake plastic way. Glancing at my bowl on the coffee table I decide to hurry up and scarf it down before I'm discovered when I hear a bratty voice whines from beside the couch I'm sitting on, nearly causing me to jump.

"God, did that loser leave the TV on AGAIN." A quick glance to my side reveal the petite and pale form of my stepsister, unlike her mom she hasn't had any surgeries yet and currently looks more cute than sexy and while her hair is a natural blonde she makes sure to bleach it frequently. Though the pink gym leggings and sports top try to show what she doesn't have, mainly a chest or an ass.

"*Sigh* Morning Amber." I groan glancing at her as she nonchalantly scoops up my cereal and I know next will be her sitting down next to me and pretend I don't exist.

Instead she stops right in front of me and turns around, my eyes glance at her toned all be it small ass right in my face, I wonder if she'll sit on my face.

Instead of doing what my intrusive thoughts say and what I expect she sits right in my lap instantly trapping my semi hard member underneath her.

"Amber w-wh-" I groan before she starts to sway back and forth like she's getting comfortable, but all she does get my trapped cock hard.

"OMG, this couch," She whines sliding back and forth, pressing her small butt against and forcing a gasp I know she must feel on her exposed pale neck," Is like SOooooo hard and lumpy."

"Get off," She seems to have heard me as she raises up enough for my erection to spring up, but instead of getting up she crashes back down into my lap and slides back and presses my cock against me before resuming her grinding.

"Like daddy needs to get rid of it." She moans my hands try and succeed in freeing my cock from the sweat pants and all I can think about is cumming and covering her exposed back.

I grab her hips small hips, I'm not sure if to keep her from getting off of me or to direct her, but she simply leans forward to fully let my erection land between her small buns before before resuming her grinding as I grit my teeth and dig my fingers into her hips.

My phone buzzing breaks me out of the fugue a bit enough to realize something is wrong, her teasing has never been sexual beyond telling me I won't get laid and she's always avoided touching me and now I'm about to blow a load with her in my lap if I don't do something.