DISCLAIMER:- The following text is sexually explicit and contains depictions of sexual acts that have been classified by the surgeon general as potentially dangerous and unhealthy. You must be a broad minded adult to read the text, and you must not make this text available to minors or to any person who does not wish to view it. Unprotected sexual relations with unknown partners is hazardous and we urge the use of condoms and safe sex at all times.

My wife Sherry had never had any problem conceiving. I knew she wanted kids as soon as we were married, and as good as her word she showed me the positive pregnancy test on the last day of our honeymoon. I was pleased too, I like kids and I was happy that she was happy.

The baby came along, a healthy little boy. After a short, enforced interval in our lovemaking, Sherry soon became broody again and within a month of “trying” she was on the phone to her Mom and sisters giving them the good news. This time she had more trouble with the pregnancy, they do say that every time is different, but once again she produced a healthy baby, almost a year to the day after the birth of first son.

Third time around, Sherry waited a while, almost 6 months before the hormones caught up with her. We started practising and pretty soon she was back from the shops with a test kit that confirmed what she already knew. As her pregnancy progressed, we discovered that she was expecting twins. A big shock for us both as this had never happened in either family so far as we knew. She grew big, bigger than the previous times as the twins grew in her belly, and one day about 6 months in she told me she planned a trip to her Mom’s place, before she got too big to drive anymore.

I could see her point, she was already struggling with the older two, and the enormous bump was making her tire easily. Our normally hectic lovelife had gone on hold too. It was hard for her to be comfortable and we had only managed it a couple of times in the last month. Sherry was unhappy about it and frustrated too, but we both knew it was only a brief interlude, and i took care of myself when the frustration got too much.

I arranged for train tickets for her and the kids, and waved her off at the station, loaded down with baby stuff and suitcases. It was Friday evening and I had two weeks to fill before she got back. I had a few beers at home and checked out a couple of porno sites on the web, before heading for bed. I wished I had tried a bit harder to persuade to give me some relief before she went, but hey, that’s married life right?

I had a lazy morning, then went out to play golf and when I got back about 6 I was surprised to find Sherry’s sister Madeline waiting outside the house.

I like Maddy, lusted after her occasionally if I’m honest. She is 2 years younger than Sherry, and takes after her Mom, dark and petite where Sherry is tall and blonde like her Dad. I invited hr in, and we chatted while I shared out the Chinese food I had brought home for my dinner. Maddy knew that Sherry was at her Mom’s. I wondered just what she had come round for, but after a couple of glasses of wine, she began to explain.

She and her husband Mike had been trying for a baby for almost a year, that much I already knew. She discussed it often with my wife. what I didn’t know was that the tests had just come back and that it was Mike that had the problem. I felt uncomfortable as she explained in gory detail about his lazy sperm. I don’t like Mike, I think he’s an over paid arrogant asshole in fact, but hearing about his fertility problems was a little more detail than I wanted to hear.

“So now, Jim, I have a problem” said Maddy, inching closer to me on the couch and topping up my glass. I nodded, uncomfortably aware of her perfumed, lithe body pressing close against me. I turned to look at her and caught a glimpse down the top of her blouse at her firm tits, nestling in a black lace bra. I felt myself getting a little hard as I thought about how lucky Mike was to get his hands on those whenever he wanted them.

Maddy seemed to be reading my mind. she leaned closer so I could’nt help but get a better look at the then she whispered in my ear “Maybe you can help me out with something?” and as she spoke she dropped her hand onto my crotch, her fingers tracing the outline of my rapidly stiffening cock. I was shocked, but the wine, the lust and the sight of her luscious tits heaving up and down as she breathed deeply drove all thoughts of stopping this from my mind. I kissed her, and she kissed me back. Her fingers worked their magic on my cock and I was son fumbling at her buttons, desperate to get her slender body.

Maddy was struggling with my buttons too, and for a few minutes we groped each other like love crazed teenagers until I had her down to her bra and panties and she had me in my boxer shorts. I lay back on the couch and she straddled me, moaning and grinding herself against my erection, while I fumbled with the catch of her lacy bra and set her tits free. she had fantastic tits. much smaller than Sherry’s, but firm and pert, with hard dark nipples that just begged to be sucked. her dark hair tumbled over my chest as she kissed her way down my body until she had reached my shorts. I shuffled them off and my cock sprang up, rock hard and already oozing a little pre-cum from the tip.

Maddy smiled and began to work her lips along the length of the shaft, covering every inch with her spit until she had reached the tip, which she licked until I groaned with pleasure. Taking me in her mouth, she began to play wit the head, running her tongue over the rim and shiny bulge, toying with the slit and lapping up the salty slime that oozed out. I closed my eyes and moaned as she gave me the best blow job I had had in years. I began to thrust gently as her head bobbed up and down, my hips moving to the rhythm of her mouth until I felt myself about to cum.

Maddy sensed my impending orgasm, and quickly squatted up on top of me again, pulling the crotch of her panties aside and guiding me deep inside her pussy in one easy motion. She was tight, just like Sherry had been before the kids, and so wet I though I was going to cum there and then.

I managed to gasp that I didn’t have any protection, but she just smiled and kissed me, my salty taste o her lips as she whispered that this isn’t about protection. She rode me slowly, squeezing my shaft with her internal muscles as she rose and fell on top of me. I grabbed her by the hips and began to thrust, driving my dick hard into her soft body and pounding the entrance to her womb. She began to pant, moving faster and squeezing harder each time I jabbed my rock hard shaft inside her. My back arched as with one final, desperate lunge, I yelled in ecstasy and shot my load deep inside her. Maddy was coming too, rocking and writhing as my cock spasmed inside her, her cunt muscles milking every last drop of seed from my aching cock.

As her orgasm subsided, she rolled over, pulling her panties back across her gaping pussy and lay back, panting and grinning as I fell off the couch and sat on the floor beside her.

I got my breath back, and as I looked at hr slender body, knowing that my cum was leaking slowly out of her I felt myself stirring again. I grabbed her by the hand and rushed her up to the bedroom, laying her down on the bed and flinging myself down along side her.

“So this isn’t about protection? you mean you want me to do Mike’s duty for him and knock you up. is that it Maddy?” As i spoke she had her hand round my cock, squeezing and stroking it as the blood flowed back. She nodded, guiding my hand to her breasts, kissing me, whispering how she wanted me in her again, fucking her until I had her knocked up.

“I want twins, just like Sherry, and I think that this monster might just have the stuff I need” she giggled as my cock twitched back to life under her expert fingers. I grinned, and slipped a hand under the waist band of her panties. I expected to find her bush, but she was smooth and bare down there. I groaned again and pushed a finger into the soaking mess that was her pussy. she moaned to, as I tickled her hard little clit and pushed a couple of fingers up inside her. hr own juices mingled wit my cum, making her easy to penetrate.

I rolled over and pulled hr panties off, revealing her shaved mound, which was engorged and flushed a deep pink. Pushing her legs apart I eased myself into position and slid my cock back up inside her. Maddy gasped as I entered her. the cum I had already splashed inside her slipped and squirted out of hr, smearing her thighs and butt cheeks as I began to pound her, while leaning down to kiss her and suck on her hard fat nipples.

I was able to control things more in this position, and I took my time, driving her to the edge of cumming several times by timing my thrusts and controlling how deep i pushed. When she had cum for the third time, she started to beg, to scream at me that she wanted my baby, she wanted me to fuck her till she was full of my seed. She clawed my back and grabbed my butt as I sped up and with a huge deep thrust, shot my load right up inside her. flooding her womb with potent sperm. I rolled off her, as she moaned and rubbed her sperm filled pussy wit her fingers.

“Thanks” she whispered. being a gentleman, I passed hr a pillow to put under her butt and stop the precious fluid from leaking, then kissed hr and rolled over to go asleep.

I woke in the morning, thinking happily about the night before, and reached out to feel for Maddy, but she was gone. On the bedside table was a note

“That was fantastic. Thanks for your help, I almost hope that i don’t catch this month, Love Maddy”

I lay back and wondered what would happen next.
Two weeks later, just before Sherry was due back, Maddy appeared on the doorstep. she was smiling, but didn’t say a word as she passed me a pregnancy testing kit. it was positive.