http://www.mangago.me/read-manga/koishite_daddy/ this maybe?
http://www.mangago.me/read-manga/yozora_no_sumikko_de/
the sequel is Yoake No Furu
http://www.mangago.me/read-manga/love_kids/mf/v01/c001/
the sequel to koishite daddy
wait tf that has a sequel???
yeah lol its about the kid.
thank you everyone
if im not wrong about this manga is about a seme have a child and that kid fall in love with the uke
but of course the uke love the seme only
even that child become teenager still love the uke
something like that but sorry i dont remember much of the details