Welcome to R. slash Best of Redditor Updates, where OP impregnates his sister twice.

Our next Reddit post comes from R slash Today I Ffed Up.

Today I Ffed up by getting tested to donate a kidney to my wife.

I decided to get tested to see if I could donate my kidney to my wife of six years.

We have two kids together, a four-year-old girl and a two-year-old boy. My wife got sick just after our son was born and now she

needs a kidney transplant. We checked with her relatives and none were a match or a viable donor.

Last week I got a call the other day saying that I was a match.

The doctor then said something about wanting to do additional testing

due to some information from the HLA tissue test results.

I didn't think much of it and agreed.

Then the results came in and I was shocked and confused.

The doctor explained that because of how DNA information is passed down through generations, a parent to a child could have at least a 50% DNA match.

Siblings could have anywhere between a 0% to 100% DNA match.

He said that it was rare to have this high of a match between husband and wife.

I asked him, what does that mean?

He said, you and your wife have an abnormally high match percentage.

Long story short, me and my wife are related. No, I am not kidding.

I was put up for adoption before I was born. No, I am not kidding.

I was put up for adoption before I was born and placed into a family that moved across the country.

I knew that I was adopted, but we didn't have any information about my biological family

because it was a closed adoption.

I met my wife by chance eight years ago.

...