So, for a while now my stepmother Lizzie, a beautiful blonde haired woman in her early thirties, with a pretty fit hot body, and huge double D boobs, has wanted to have a baby.
She obviously wanted to one with my father, but as he is in his late forties and busy with work a lot, he was a little reluctant to have another child at this point in his life.
This was when she turned to me, as I was my father's son, I could pass on some of our family DNA to her, so Lizzie thought, and it would be like he gave it to her, and the baby would still look a little like him too, so, he would probably never know.
I was of course reluctant at first, and not willing to take that risk, but, Lizzie eventually wore me down, and we did the necessary deed.
Now, two weeks later, we waited to find out if it worked, and after Lizzie did what she needed to do, with one of those pregnancy kits, she got her result.
"Oh." She said glumly, looking at it unhappily, as we stood in the family bathroom together, before adding "I'm not pregnant."
"Oh." I replied, feeling a little sorry for her, because I knew how much she wanted this.
"Well, we will just have to try again!" she then said eagerly.
She then tossed the test in the bin by the sink, before she turned and stepped towards me.
"Come on, get it out!" she then said eagerly, taking hold of my jogging bottoms.
"What now?" I asked back a little concerned, because my father was in the house that day, and could catch us at any moment.
"Yes! I don't want to wait any more, and besides, your father's downstairs, he'll never know! Just make it quick!" my stepmother replied eagerly back.
She then let go of my trousers, turned around, took hold of her short blue summer dress, and lifted it up around her waist, revealing her round plump butt, and bald little pussy, because she wasn't wearing any underwear.
Lizzie then leant forwards, and placed her hands on the edge of the sink, before she then said "Do it! Do it now!"
So, I quickly stepped towards her, and as I did, I pushed down my black jogging bottoms, and then took hold of my dangling dick, before I started to tug on it, to get it excited.
Fortunately for us, her bare rear and her fit toned legs easily excited me, and as I stood up behind her, I looked at them eagerly, as I jerked my dick.
My cock quickly began to stiffen up, and then to help it more, I pressed the head of my member up against her soft warm buttocks, before I brushed it back and forth across them.
Her butt felt so nice against my dick that it worked perfectly, and within a minute of rubbing myself against her, I was fully hard and ready to go.
"Stop teasing me Steve, and put it in!" Lizzie then said urgently, wanting to get on with it.
So, I placed my cockhead up against her soft pink pussy lips, and then with a firm push, I slid inside of her.
"Oh yes!" exclaimed my stepmother in delight, as I sunk into her lovely warm wet cunt.
I have to admit, I did feel pretty good to be inside of her again, and once I was, I held onto her slim waist, and then began thrusting in and out of her.
"Oh yes! Oh yes! That's it, fuck me! Fuck me!" Lizzie exclaimed in delight, as I slid back and forth inside of her.
I happily pumped my hard cock into my stepmother's hot wet cunt, and fucked her keenly from behind, and Lizzie moaned and groaned in delight as I did.
"Yes! Yes! Yes! Fuck me Steve! Fuck a baby into me! I want a baby!" she said keenly.
Hearing her beg me like that, just excited me more, and I began thrusting harder and faster into her, and as I fucked her more rapidly, my stepmother groaned more excitedly in pleasure.
"Oh yes! Yes! Yes! Do it! Do it! Do it!" she exclaimed eagerly, clearly enjoying it as much as I was.
Sliding my hard young cock into stepmother's wet warm cunt repeatedly, I keenly fucked her just how she wanted it, and for a several wonderful minutes we pounded away in the family bathroom.
Then, as I was still plunging in and out of Lizzie's lovely moist pussy, we were suddenly interrupted when my father called out to her, from downstairs "Honey! Honey! Where's the dam nail cutters? I've got a hang nail!"
I instantly stopped, and stood frozen in terror, before Lizzie yelled back to him "In the bedroom, on my dresser!"
We then heard my father coming up the stairs, and quickly I pulled my stiff length from my stepmother's wet cunt, before hurriedly pulling up my jogging bottoms.
I had barely got them up over my erection, when I heard my father reach the top of the stairs, and start walking towards the bathroom.
I then stared in fear at the door, praying he wouldn't try and open it, before he passed it by, and continued towards his bedroom.
As we both sighed in relief, I heard my father step into his room, before he then called out again "Whereabouts? I can't see them amongst all your things?"
My stepmother sighed in despair, knowing she was going to have to go and help him, before she pulled down her dress and straightened it, and then unlocked the door, and stepped out into the hallway.
As she went to help my father, I quickly exited the bathroom too, and then dashed downstairs before sitting in the living room, trying to act all casual.
A while later, my father and stepmother came downstairs, and as dad sat with me in the living room, to watch the football I was watching, my stepmother strolled on through into the living room.
For a bit, I happily sat with my father watching the game, feeling like everything was normal again, however, my stepmother then called out "Steve! Can you come in here a moment? I need your help!"
I glanced at my father who was busy watching the game, before my stepmother called out again "Steve!" and then dad said to me "Well, go see what your mom wants!"
So, I got up out of my chair, and moved towards the kitchen, and as I walked in, my stepmother was stood over by the sink.
She looked at me keenly, before asking in a hushed tone "Is he still watching the game?"
"Yeah." I replied back.
"Then quickly!" my stepmother said eagerly.
She then pulled up her dress again, revealing that lovely round rear and her smooth bald pink pussy again, before she lifted one leg up onto the counter beside her, and gestured to me to come to her.
I couldn't believe it, she really wanted to go for it right now, with my father just a few meters away in the next room, but she did, and after a moment, I quickly moved towards her.
Stepping up to her, I hurriedly began pushing down my jogging bottoms, and as I did, she reached down, and took hold of my dangling limp dick.
"We've got be quick!" she whispered, as she held my cock tightly in her hand, and then began tugging on it.
My stepmother urgently pulled on my dick, eager to wake it up, while her other hand massaged my balls, and with a soft groan, I felt myself quickly rising to the occasion.
It didn't take long, being jerked and fondled by Lizzie was more than enough to get me hard, and soon I had a full erection again, as my stepmother keenly ran her soft warm hand up and down it.
Once I was fully hard, my stepmother eagerly guided it to her waiting wet hole, placing my cockhead up against her pussy, before she then began to feed it into herself.
My large round bell end quickly disappeared inside of her, sliding up between her little pink pussy lips, before with a firm thrust, I pushed the rest of my dick up inside of her too.
"Oh yeah!" Lizzie moaned softly in delight, as my length filled her up again.
Then holding onto her lovely round butt, I began to pump up into her, not wasting the little time we probably had, and my stepmother moaned again, before holding onto me.
She eagerly wrapped her arms around my shoulders, and then moved her leg from the counter, to around my waist, and as she stood on the other, and clinged to me tightly, I continued to pump up into her.
"Oh yes! Oh yes! Do me Steve! Do me!" my stepmother whispered eagerly to me.
It was both exhilarating and terrifying, knowing dad was just in the other room, as I fucked his beautiful young wife, but she really wanted this, and I just couldn't say no to her anymore.
So, I held onto her, and happily pumped up into her wonderful pussy, as she moaned and groaned softly in pleasure, into my ear.
"Yes! Yes! Yes! Fuck a baby into me Steve! Fuck a baby into me!" she whispered excitedly.
Keenly, I thrust up into her, repeatedly plunging my hard length up into her wet cunt, while we both desperately tried not to groan out loud, and I did my best to just keep going, and not think about my father possibly catching us.
Then as Lizzie continued to stand on one foot, holding onto me tightly, and I continued to pump up into her wonderful mature pussy, my father suddenly cried out excitedly "Goal! Goal! They scored Steve, they scored! Get in here, they scored!"
I instantly stopped and stared at my stepmother, not entirely sure what to do, before my father called out again "Steve! Hurry or you'll miss the replay!"
Lizzie then sighed, and then gestured for me to go, and reluctantly, I pulled my hard cock from her lovely wet cunt, and then hurriedly pulled up my jogging bottoms again.
"Steve!" my father called me again.
"I'm coming!" I replied eagerly back.
Once I was dressed again, I quickly marched across the kitchen, and into the living room, and then deliberately stood behind the sofa, to hide my bulge, as I watched the replay, and the rest of the game.
The match went on for another half an hour or so, before it finally finished, and then my father decided to head into his little office, to catch up on any emails he might have missed.
Once he was in his room, I quietly made my way back into the kitchen, to see if my stepmother wanted to finish what we started, but as I walked into the room, I discovered she wasn't there.
Lizzie wasn't in the kitchen anymore, and as she hadn't walked passed us into the rest of the house, so, I figured she must have been outside in the garden.
