I'm looking for some words that mean a woman or a man has an affair with someone (not their spouse) and they are given a child.
I guess 'My wif has a baby with another guy' is appropriate way to say.
Is there another common way to say about this situation. In Japanese, we say 'he/she is a child between him and his paramour'.
I'm glad if I can know natural expressions.
Thanks
LiJ