I think the uke's dad and seme's dad are not the same. I think that the uke's dad did not really cheat on his wife cuz that's what he said in the other chapter is that he only has the uke's mom in his sight.
I think their relationship may be the seme's mom is an illegitimate child of the father's family, or the uke's father has something to do with the father of the seme.
That's just one of the possibilities of their relationship. I don't think this is actually incest.
I think the uke's dad and seme's dad are not the same. I think that the uke's dad did not really cheat on his wife cuz that's what he said in the other chapter is that he only has the uke's mom in his sight.
I think their relationship may be the seme's mom is an illegitimate child of the father's family, or the uke's father has something to do with the father of the seme.
That's just one of the possibilities of their relationship. I don't think this is actually incest.