Doggy Style Time.

A second trip to that pussy was a perfect chance to introduce my formally virgin niece to my favorite position, doggy style. There's just something primal about fucking a girl from behind, her trying to keep on all fours as I pound her as hard as I can. I could see that she was pretty out of it, but I didn't really care all too much. Family or not, the horn waits for no woman. I grab one of her nipples and give it a slight twist. She draws a deep breath in shock and looks up at me confused.

"Turn over," I tell her, moving back to give her space. She hesitates for a moment before rolling onto her belly. "Now get on your hands and knees. That's it, now hold on tight."

With that, I move in behind her. I took a moment to admire her tight ass, I couldn't wait to use it later. For now, I got my cock in place at the entrance of her pussy and began to push the head in. She drew in another deep breath and shot me a look over her shoulder.

"Do we have to keep going?" She asked with a whine. "I'm really sore, and I'm not sure I want to have sex right now."

"Don't worry," I told her softly as I continued my slide back into her tight slit, griping her hips as I did so to make sure I got as deep as I could. "You'll get used to it the more we do it. For now, just grin and bear it."

She turned back around with a groan, either because of my words or because I bottomed out in her pussy I'm not sure. Either way, she didn't try and stop me, this was a normal thing to do after all. With the two earlier loads I was pretty sure this one was going to take a while, so I went slow, partly because I didn't really want to hurt the girl, but mostly because I was enjoying her swollen lips gripping my cock as it slid slowly in and out. Each thrust was met with a hiss or a whine from Sarah, and a groan from me.

After I got a good rhythm going I took one hand off her hips and started to paw at her soft tits, feeling them bounce forward with each impact of my hips against hers. It took nearly 20 minutes but I could feel my cock start to really warm-up, so I decided to hurry things along with a bit more ****. I grabbed her shoulders in order to get some leverage and started to really pound away at her cunt. I could hear the wet smack of flesh on flesh as my hips slammed full **** into her pert little ass. Sarah let out a loud, almost pained moan and I could feel her cunt tighten once more.

"I can't cum anymore," she whined as I continued to ride her hard during her orgasm. "It's really starting to hurt."

"That's fine," I grunted as my thrusts became frantic in pace. "I'm almost there."

In moments I felt my own peak hit me as I pushed deep as I could before unloading even more cum inside my niece. I let out a sated sigh as my cock slowly stopped spurting jizz and I pulled out. Sarah all but collapsed onto the bed as cum leaked from her cunt like a faucet. I rolled my legs off the bed as I stretched, feeling refreshed in a way that only teen pussy can make me feel. I looked over Sarah's prone form, her skin flushed from the fucking, her hair a mess, and her body covered in sweat.

I ran my hand all over her backside before I gave her a hard slap on the ass. She let out a yelp of surprise before groaning again. I chuckled lightly at the response.

"Come on sweetheart," I told her tugging her nearly limp form up. "Let's get into a shower, you'll feel better with all this sweat off of you then we'll get lunch."

She nodded, her face buried in my tits as her body lay slumped against me.