Looking for Yaoi

Hello all. I have read a yaoi manga before. There are couple of volumes. The story involves two brothers stories. The main story is the younger brother's but i totally forgot about it. The other one is the older brother's. I remember the older used to have a long hair when he was young. A guy servant was picked up by their rich father and was given to him as replacement for his dead dog. The servant however has a twin brother that he left behind. And the twin fell in love with the older brother too. Not sure if it made sense but any help woulg be greatly appreciated. Thanks.