Stories where husband & wife get off on her getting pregnant

I'm looking for more stories where the husband and the wife get off on the idea of her getting pregnant by another man. I especially like the stories where they're slowly seduced by this idea and surprised that it turns them on, like the following:

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Can anyone recommend any more?

Great stories

Just go to the mall and you will see some cheating wifes

Here's one


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brainbox1
Great story

Anymore good ones

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Unfinished, unfortunately.

Part 2 is here: The hyperlink is visible to registered members only!

Hello meme,
I would be really interested,to know if anything,happened to anyone else,like it happened to us,barely seven days after the wedding,when our new adjoining flat mates,played strip poker with us on our initial cordial ****** evening together,and wonderfully,ended up fucking my totally unprotected wife to death,coming inside her,four or five times,and almost certainly,knocked her up,as his new also bride and I,looked on between catnaps,opposite them.
Bearing in mind,it was only seven days,after the wedding,it was such an incredible slice of luck,especiallly for me,thx Terence,phil.,xx