A long time ago I started a story, but never finished. For a number of reasons, I decided to fill in some of the gaps I left. I hope you like this and let me know whether you want the final installment. ;-)

As Bill's head lay back against his pillow, an unexpected sense of nervousness struck me. Butterflies filled my stomach as I rolled to the side.

Bill folded his hands behind his head. "You don't look like you're ready to sleep." I whispered.

"Nope." He replied extending an arm around my shoulders. It was that silent way men prompt a women to lay on their chest and prepare for go to work.

Now, I should add that the reason…I mean THE reason…I don't like receiving oral sex is the assumption that it's a two-way thing.

In my head, I knew I didn't owe my brother in-law a damn thing. I kept reminding myself of that as I slid over and rested my head on his stomach.

"Are you expecting something?" I asked coolly when he rested a heavy palm on the back of my head.

Without thinking, I raised one hand and wrapped my fingers around his swelling cock. I could almost hear him smile with smug satisfaction.

I tried playing the wife card. "You know I don't like that."

The son of a bitch gently pushed.

My face slid down his belly and kissed the purple tip of his swollen rod. Bill's dick was hot and thick. I could smell myself on him.

We lay there in silence for a moment, my hand subconsciously stroking him. Then the silence got to me and I suddenly felt nervous, like a self conscious teen again wanting to please. We were in a bubble. Bill was the man and I was his girl. He had staked his territory, then showed me attention. Now it was time to returning the favor.

Ignoring that fact that I was married…ignoring how much he repulsed me…knowing how much I hated the taste of cum..I parted my lips and lowered my head.

Bill’s moist shaft began to unhinge my jaw. Like me other lips, my mouth and tongue weren't used to so much manhood. Before I even got much past his fat mushroom, Bill's thick head pressed against the back of my throat.

I cough and pulled off.

Enjoying himself immensely, Bill slide a hand under my waist and began pulling up at my hips. I obediently lifted onto all fours.

"Let's see if I can help."

Uncertain what was happening, I soon found myself upside down. A bit disoriented, I found myself staring down Bill's foot long stick. My tits dangled and brushed against his hairy belly. My hips and thighs we helplessly straddling his scruffy face.

As he took a breath and began to speak, I realized that Bill’s low, controlling murmur had come to own me. His cock had opened the door to my body. I was now following his every word.

Making feel like a little girl all over, Bill craned his neck and instructed me, “Come on, baby. Do what I do.” His tongue suddenly licked my clit. Electricity shot through me again. My abs crunched and plunged my lips down around in his meat.

I had never, ever sixty-nined. I didn’t know how the process should work. Somehow though, my pussy and my face knew just what to do. As Bill worked my dripping lips, I mouth made a home for him in my new whore hole.

His sweaty palms slid up and down by back, sometimes cupping my ass to help himself to my quivering snatch. Without thought (or maybe just thoughtlessly), his finger curled between my cheeks. The fresh air made my anus tighten. Out of nowhere, the tip of a finger slid down. Somehow a low "mmmm." escaped my stretched lips. A sadistic smiles spread across my slit.

Next, his paws slid up my neck and wrapped around my head. Bill wove his fingers between my matted hair. Suddenly, a familiar heat torched me clit and another orgasm hit. Every muscle clenched and spasmed.

I felt my tongue lash against Bill's pipe and heard him groan. His fingers turned rigged and his hips began to jerk, drilling his rig down my throat. I found myself willingly used.

I wanted to gag. I wanted to cough and gasp, but his juice soaked nest pressed against my face. My throat submitted and his entire snake disappeared between my lips.

My eyes bulged and watered as Bill held my face in play. His hose swelled even more as it prepped for the finish.

Unlike anything I had ever experienced, I felt Bill's seed coat my throat and fill my belly.

He groaned with savage satisfaction, fucking my face between his legs. "Ooooh," he moaned with a few final, spastic pumps. "That is a good fucking girl." Something pathetic in me felt praised and validated.

Bill released me, dragging his hose out of my throat. At first I coughed and gasped. I felt something warm and sticky run from my nose, mixing with my wetness from my watery eyes and Bill's crotch sweat. Out of wanton curiously, I licked my lips costing them with his salty filth.

I rolled onto my back still upside down on the bed and gasped for air. My body shivered with satisfaction. I hated how much I felt like a real woman in that moment.

Bill's hand slid over between my thighs and played with my swollen clit. My body flinched with jolts of unrequested pleasure.

"What do you have to say you dirty girl." He said finding separate homes inside me for his pinky and index finger

I said the only thing that felt appropriate.

"Thank you."

Source: reddit.com/r/gonewildstories/comments/3dzk6i/3of6_returning_favors