Help me to find name

I'm looking for japanese yaoi manga's name. i'm searching for like a 5 years but i still can't find it. So here is story:
There was man who married to woman.But his wife died and her lil bro worked for him. But that little bro was man's kind of like ex lover?/before his sister/. Little bro is blonde/uke/.Other man is black haired/seme/. When they were in relationship uke was shorter. But few years later when his sis died he was taller, muscular than his ex/not that much, but still/. And after some kind of problems. They decided to date each other again. When uke asked top -now that im bigger/taller/ than you, dont u think i should be top? Kind of jokingly? But top said no and they have sex that both of them feel more satisfied. And that's all i can remembef from that. Hope you guys help me to find out the name pls. ╥﹏╥