No, just enter her sweet pussy now

You grab a firm hold of your sister's firm bubbly ass inching your cock forward.

"Don't." Is all she lets out in a weak voice, you don't think she really means it.

You press your engorged cock against her wet entrance, easily pushing it inside her lubricated pussy. The feeling of her tight pussy is amazing; it feels like a perfect match for your cock. Each thrust is causing a shiver going through your body. Emma is obviously feeling it too, pushing her ass against you with each thrust.

"This is so wrong," she moans out.

"But it feels so right," you say while nibbling her ear and ravaging her body.

"Oh fuck, I'm coming, aaaaahhh," Emma screams another orgasm, causing her pussy to clamp down on your cock.

You are still a bit from cumming, so you continue to thrust hard through her entire orgasm.

"It's too good," Emma lets out as she let your cock slip out of her amazingly tight cunt.

Your hard cock desperately wants to feel her warm walls around it again, longing for the pleasure it brings. You are starting to feel desperate, until you see that all she did was turn around. She is looking you in the eyes, begging you to fuck her. You lift her up, impaling her once again on your raging boner. Emma wraps her legs around you as you push her against the wall. Emma is grabbing your hair pulling you in, she's sticking her tongue out and you suck on it before you meet her for a deep kiss.

"This is the last time okay?" your sister tells looking you straight in the eyes, as you once more bury your cock deep inside her warm pussy.

She is incredibly wet and each thrust makes her produce more, you kiss her neck leaving your mark as the pleasure continues to rise for both of you.

"This is so hot," Emma says with a look of rapture as she stares down on where your bodies are connected. Watching how her brother's cock pound in and out of her tight little pussy.

Any hesitation she had seems to be lost as she once again pulls you in for a kiss. It's like your tongues are trying to bring you both to orgasm just by kissing, as your tongues wildly plays with each other. You try to continue kissing but the pleasure is too much as you rapidly pounds your cock inside her most pleasurable spot.

Instead of kissing, you just stare at each other, watching the other person getting closer to coming with each thrust. Watching your sister staring at you with such lust is heightening the experience even more. The way her pussy squeezes you and the way her body move feels wonderful and you can't help but admire her technique as you enter the final spurt.

"Oh fuck sis, it's too good," you scream out as her pussy once more clamps down on your cock. You only got a few thrust left in you before you will cum.

"I want to feel you cum inside me John, I want to feel your incestuous sperm fill me up," Emma says, the words alone are enough to bring you over the edge, but feeling her pussy once more contracts and tightening the grip on your rock hard cock makes you cum even harder.

"Fuuuuuck," you scream out while your whole body begins to shake as the first spunk of jizz hits deep inside your sister.

As soon as Emma feels the first spurt of cum, she wraps her legs around you making it impossible to pull out while reaching her own climax. You are both clinging on to each other as more and more sperm leave your body. You have a hard time concentrating on anything but the pleasure and get surprised when you feel your sister's tongue enter your mouth. It’s a deep sensual kiss. Her pussy is still clamping down on your still rock hard cock. You continue to kiss as both your orgasms begins to ebb out.

The way your sister's flustered face look as you break the kiss is highly erotic and it is enough to let you know that she enjoyed it as much as you did. You are still holding her up and she lets her head rest against your chest. You want to stay inside Emma for as long as possible and you begin to feel how your jizz starts flowing out of her pussy down your cock.

Emma is gently caressing your chest while looking at you. You can't really tell what she's thinking. The feeling of your sister's warm tight cumfilled pussy around your cock is starting to make you hard again.

She finally decides to push you away, getting off your once more stiffening cock. She looks at you with a concerned look; you are splitting your attention between looking directly at her and her voluptuous breasts and cum leaking pussy. She gives you a light tap on the shin, to bring your attention back.

"Oh John what are we going to do?" She says more talking to herself then to you.

"You should have left; it was stupid of you to come back. I'm your sister, I mean if mom and dad found out it would kill them or if anyone at all found out it would ruin our lives. I mean we can't continue doing this…It's not normal and it's not worth the risk."

You want to tell her she's wrong, but you're not sure if she is. You regret that you slept with her because it has awakened a desire you didn't think existed. Just watching her amazing body and her pretty face with that long beautiful red hair is enough to make you hard again. If you hadn't seen Derrick fuck his little sister none of this would have happened. He wanted his sister and maybe it's not such a abnormal thing to do after all. Maybe you can convince her that it's normal for siblings to be fuck buddies, but you’re not sure if that's all you want to be with Emma.

Fall break is still more than a month away, but going away on a trip with Emma to get this out the system might be a good idea, even if it’s just for a weekend.