Is having sex with mother's cousin prohibited? Are they genetically distant enough?

[Vivivi]

I wonder about that.

 

[Hs666]

...

It is equivalent to a 2nd cousin. It is not the best choice, there is the possibility of big side problems in case you want to have a child. There is not enough genetic distance.

 

[Seeker in the Dark]

I’d just stay away from anyone related to your family in any way genetically. Plenty of people out there u know.

 

[Ol argedco luciftias]

That is the "first cousin once removed." The number of "removed" is for difference between generations.