childhood friend yaoi manga

well,, i've been trying to recall a manga i'd read some months ago but i still couldnt figure it out.. i read too much manga at once that time, i don't even remember the plot :'( what i remember is the seme and the uke was childhood friend, the seme had a big brother that had a same look but a bit taller and this big brother came near the end of the story..

can anyone help me to find this manga?? or can you tell me ur fave manga where the uke and seme are childhood friend??
please~~

thank you in advance^_^