I’m pretty sure only one sperm can fertilize an egg so there will only be one father. The genes can’t be mixed since the genetic information of the person is stuck in that sperm gamete. No way for it to mix. But if there’s a chance that the woman has multiple eggs out at once then I think it would be possible that one child’s dad is differe...... reply
I was first introduced to bl because of the anime Given and when I looked up “Given” I was shown the manga and read it :) then I went to reading Honto Yaju which is fantastic :)) 1 reply