Becka was watching

As I watch their naked forms clutching their bikinis disappearing up the stairs, I see something frightening. Behind the basement stairs I see my sister as she stands up, naked. She's looking straight at me, smiling. She walks into my section of the basement, her tits bouncing enticingly.

"You're so naughty, Dan," she says, licking her lips. I am mesmerised by her gorgeous boobs and hot body. "Got a little hot teen pussy, eh? What would Megan say?"

"Are you going to tell her?" I ask with a sinking feeling in my gut.

"Not if you treat me the same way," she says, sitting next to me on the couch and reaching for my cock. I moan as she strokes it. "You can have a little hot sister pussy to go with the teen pussy."

She is just so sexy, her tongue poking out her mouth as she works on me, her eyes burning with lust. The forbidden nature of what's she's suggesting makes me hard in just a few pulls.

My lust rises rapidly and I moan as I push my sister back on the couch. I take her mouth eagerly, quickly thrusting my tongue past her lips. It's Becka's turn to groan. I grab her tits and squeeze them as I dance with her tongue. She's pulling my cock toward her pussy, and I climb up and scoot between her legs. Her pussy is glistening with her taboo excitement. Rubbing my cock up and down her slit makes her squeal and arch her back.

"Oh, Dan! You make me so horny!" she gasps breathlessly.

I slip my cock lower and connect with her steaming pussy. As I start to slide into her, she pulls hard on my ass, shoving me all the way inside her and bottoming out. We both growl to be balls deep in her. Without waiting for her to get used to my size, I begin pounding her cunt rapidly, having just cum I don't worry about coming too soon.

She whispers, "I wouldn't have told her, Dan. I just wanted to fuck you. Your cock is amazing. Your wife is very lucky."

"Your cunt feels so perfect, Becka. Why didn't we do this before?" I say, grunting under my breath as I pummel her.

"Because Mom and Dad would have killed you and exiled me to a convent, if they found out," she says as she gasps from my forceful fucking.

I quickly get close to coming, the taboo nature of our coupling is that exciting.

My sister groans as her body starts shaking. She says, "Oh, fuck, yes! I'm coming, Dan."

I feel her cunt squish my cock and I pound her harder and faster. I finally grunt as I feel my cum shoot up my shaft, bursting out inside my sister's hot body. "Take it, sis! Take my cum!" We both growl and moan as we climax for at least a minute.

I slump on top of Becka, panting in her ear.