Naughty Birthday

[DaddySpanksOTKBB]

On my stepdaughter Melissa's 21st birthday I allowed her friends to throw her a birthday party at our house. My son had been deployed overseas and obviously could not attend. Her mother and I divorced a few years before and she has not been involved in our lives since she left.

Everyone was drinking and getting high and the party was a lot of fun and I did my best to stay in the background so as not to cramp anyone's style.

At a point where everyone was feeling good and the party was getting loud Melissa's friends decided it was time for a birthday spanking. They wrestled her around and as she was passed from one person to another she got several playful swats on her ample round bum.

A couple hours after that the party died down and those that hadn't already left had finally gone home. It was very late and had been dark for several hours. I was in the kitchen loading the dishwasher when Melissa came in, obviously a little tipsy and high. "I'll help you clean up in the morning. Lets sit down and relax for a bit" she said leaning in the doorway. I had put in a lot of effort to make sure things went well and was tired from a long day. I was looking forward to going to bed, turning on Sports Center and passing out. But it was her birthday and I thought spending some time together would be nice for her.

"Ok honey." I said and followed her into the livingroom, turning off the lights as I went.

She already had the tv on, and we sat down on the big suede sectional. She leaned forward taking a lighter from the coffee table and lit a joint toking deeply.

"Should you be doing that right in front of me?" I said half joking.

She smiled and blew the smoke out.

"Don't be a hypocrate Dad, here.." and she handed me the joint. She leaned back and relaxed with her eyes half open. I took the joint, dragged deeply and held it. When I let out a cloud of smoke I relaxed and my head swam. I leaned back and let the sensation wash over me. Within a very short time I was very high. My head was light, the world narrowed and I was just floating.

Melissa must have seen the effect and smiled at me with half lidded eyes. "Good isn't it"

"Oh yes" I said smiling back. We passed it back and forth a couple more times when I noticed she had some french soft core movie on. The girl in the movie was being spanked by her lover as foreplay.

"You never gave me my birthday spanking" Mel said.

I couldn't help but look at her. I was so high I didn't know how to act. She was slumped down on the sofa, her legs were stretched out and her feet were on the coffee table. Her long dark brown hair a mess. She had changed out of her party clothes. Her tight white cami barely holding in her large boobs. A pair of PINK booty shorts and white ankle socks completed her outfit. Her big brown eyes were looking up at me with an impish expression.

Some sense came to me and I tried to call her bluff. "Be careful what you wish for..." I said lamely.

"Oh really?" she said then, maintaining eye contact she bit her bottom lip. She stood and I took her figure in all at once. Medium height for a woman, a little over weight but curvy in all the right places. A young woman my father would have called voluptuous in his day. She stepped to my right side and layed herself across my lap. She looked over her shoulder at me and said "Prove it."

Suddenly the mellow world I was enjoying was gone. My heart was pounding. I knew this was wrong. If I had any strength of conviction I would have pushed her off me and locked myself in my room. I couldn't though, the temptation was far too great in my chemically altered state of mind. I lamely swatted at her plump rear a couple times and laughed like a goof, again hoping to call her bluff.

She looked over her shoulder again and with a husky voice said "A real spanking...on my BARE bottom daddy. Hard."

The shock was/is indescribable. I'm sure I looked like a fish with my mouth wordlessly opening and closing. I had looked at Mel appreciating her figure for a while now, but had pushed away any lustful thoughts. I had seen her flirt, and though she was an intelligent and responsible young woman (for the most part) she wasn't shy about her sexuality. I had allowed her to bring boyfriends home once she was old enough (so that I knew she was safe,) and knew she didn't care who knew what was going on in her room, having heard her bed squeek and bump late at night and hearing her and her lovers' grunts and moans. She would walk around the house in her underware or a towel fresh from the shower unabashed. She often went braless under both tight and loose fitting shirts, and would even go pantyless in a night shirt that didn't always cover everything. She never openly flirted with me, teased me or said anything inappropriate, so I just let Mel be her very secure and confident self, and kept turning my head and being careful where my eyes fell.

The weed had stolen my sense and my composure. The lustful thoughts that I had fought back for so long began to flood in. The career professional and loving step-parent part of my psyche were gone, and I had no strength to resist.

"H-h-honey.." I barely choked out of my dry throat.

"It's my birthday Daddy" she purred. I couldn't see her face anymore from the angle and because of the shadows but I'm certain she was smiling and loving having me do her bidding.

I put my left hand on the small of her back. With a trembling right hand I clumsily fumbled her waistband; the white letters spelling PINK pulled tight around her round cheeks. Feeling me struggle, she lifted her hips and pulled her own shorts down, baring her magnificent plump round bottom. Her thong caught in her butt crack and turned inside out, then slid down with her shorts, just below her knees. She then settled herself across my lap posted on her elbows, back arched, bottom raised. I gasped at the sight. My heart was pounding. My whole body was trembling. I put my right hand on the soft skin of her cheeks, slowly carressing, looking at the curves, the tan lines from her bikini, the cleft where her bottom and upper thigh met, the dark separation between her cheeks. Then before I knew it I raised my hand and brought it down. A loud crack filled the room. Then another and another. I kept spanking. At first I felt I may have misjudged and hit her too hard, but her reaction told a different story.

"Ow ow ow...ahhhhh...yes..ow yes!" She said in harsh husky hisses and whispers, while her body writhed, her legs kicked, and her bottom clenched.

"Yes daddy spank your naughty girl..l..ow ow harder, that's it, HARDER!" Again not yelling.

I began working hard, alternating from cheek to cheek, then attempting to cover both with one smack after another right where she sits. Her legs kicked and her body twisted. I wrapped my left arm around her waist and held her tight to me, increasing the intensity of the spanking. She arched and bucked from the stinging burn, causing her cami to ride up exposing her large braless breasts, and causing her shorts to fall to the floor. Her thong was caught on one ankle while her legs alternately opened and closed. I would pause now and then to reset her on my lap then continue. I could see the side of her large left breast, sometimes swinging as she pushed up on her hands, sometimes squashed when she collapsed onto her chest.

SMACK SMACK SMACK SMACK SMACK

Her bottom was getting very pink, the contrast sexy against the white flesh and tan lines. She was posted on her hands now head up, bottom clenched so tightly it was like spanking 2 large bags of sugar. Legs stiffened straight out behind her and toes curled. My hand was sore to the point that I was sure I'd bruised it. She made no sound, obviously holding her breath for about 10 hard swats then she said huskily..."stop"

I stopped. She collapsed on my lap panting, breath coming in hitches. I was breathing heavily and, not surprizingly I was very hard. I looked down at my work. Two large red spots on her butt cheeks with finger marks around the edges. Red lines just inside her cheeks where they were slapping together during the 70+ smacks I must have given her. Without thought I began to rub. The red spots seemed hot to the touch. Her hand joined mine in a mutual attempt to sooth her burning and sore bottom.

"Mmmm" she moaned spurring me on. I continued rubbing, my hard cock fighting against the denim fabric of my shorts, pressing against her hip. One cheek then the other. Soon her hips began to gyrate softly. "Thank you daddy" she purred. I didn't answer. I don't know if that was for the spanking or rubbing and frankly I didn't care. She then lifted her hips once more, opened her knees and with her right hand reached between her legs. I looked down and saw her fingers rubbing. "I need to Daddy, I hope it's ok." She said in that purring voice. I contined to rub, now noticing I was humping at her hip.

"It's ok sweetheart." Was all I could manage to say. I'm not sure she cared if I approved or not, she was going to do it anyway.

The situation was very intense. We were very high and lost in our own world. The tv was the only light in the dim livingroom, displaying a steamy love scene.

She began humping at her own hand, her breathing becoming heavy, and uneven. Holding her breath for long periods then panting. Again her bottom was clenching then relaxing, but this time from the motion of her hips, not from the pain of a spanking.

"Spank me.." she whispered.

"What..?" I asked stupidly

"Spank me daddy" she repeated and continued humping.

I did as I was asked. Though this time not nearly as hard, trying to find the spots with the least amount of redness. I worked slowly, enjoying the feeling of my hand on her smooth bottom, pausing to stroke her warm skin between slaps.

"Ohhh yesss" She moaned. Her hand now working harder. I saw that she had opened her lips and was drawing circles around her clit with a finger, another poking in and out of her. Before I knew what I was doing I stopped spanking without being asked and slid two fingers in about two inches. Her soft warm interior was tight and so very wet.

"Ahhhhhhhhhh..." she moaned huskily "omg yessssss"

Her hips came up at that and she pushed herself back against my hand. I slid deeper making circles trying to find her g spot. She had taken her hand away and was up on her elbows now, panting and humping. Her right foot was on the floor. She worked herself hard on my fingers. With some condsideration I touched my thumb to her anus. "Uhhhhhh..." was her vocal response as she arched her back. Encouraged, I slid my very wet thumb into her bottom as deep as I could go.

"Oh god yessss daddy. Aww yesss...uh uh uuhhhhh. Let me fuck your hand" Her voice a loud husky whipser. I was stroking and tapping where I knew her g spot must have been and kept my pace steady. My thumb pushing deeper into her bottom.

"Yes yes yes ohhhhh yesssssss......" she grunted, her pussy clamped down on my fingers hard and pushed them out. A gushing flow of juices followed my hand and she soaked my thigh. I quickly rubbed her lips pressing near her magic button so as to maintain her orgasm, while her body spasmed with the powerful climax.

Suddenly she kicked herself off my lap, getting on her knees in front of me. Without a word she opened my shorts and released my straining cock. She began stroking it with her soft hand. With her other hand she went back to pleasuring herself. Between the increased sensation from smoking pot, and the amazingly erotic intensity of the situation, it only took about 10 strokes before my cock was spurting gouts of thick ropey semen onto my lap, in her hair, and all over her hand. Just as I came, her body convulsed and stiffened and she had another orgasm. With her eyes squeezed shut and mouth gaping she squirted again, soaking the carpet with her juices.

My head fell back and I slid down on the sofa, cock still twitching in her hand. She put her head on my knee and looked up at me. "That was an amazing birthday present." She said then giggled. I ran my hand through her hair, getting my own semen on my fingers. We caught our breath sitting in a sweaty, exhausted but contented heap; her still gently stroking my relaxing cock.

After some time she stood, using my leg to steady herself as she came to her full height. Her soft curvy naked body covered in sweat, cami pulled up over her large breasts, her large hard nipples pointing outward. Her sexy midriff and belly button wet with sweat. I looked down and saw her neatly trimmed triangle of dark pubic hair above her swollen lips. I could see the inside of her thighs were wet with her juices in the dim light from the tv. She let me have a long look, half smiling and biting her bottom lip. Then she leaned forward and kissed me deeply. Suddenly she was gone and I heard the bathroom door close.

I got up and went to bed.

The next few days were very awkward. We barely spoke and avoided one another until this morning. She said as she was on her way out to work that she had no plans tonight. She says she has some weed and asked if I'd like to hang out and watch a movie.

I got nothing going on.