Dual Accounts ME and My Brother

Thesath__BRo is my Cosin Brother and Some TImes he come our Home and Play From my pc and im playing from my laptop on same network ONly on some days as in the rules he dosent know my passwords or anything Same THing for me... i submit This before anything goes wrong and ill not play from the Desktop as i only use my laptop.....      (CUZZ He Some Times Lives With uSS)

same prob here it wont let me register my acc because my brother had registerd his one and now it says I exeeds my limit 1/1 for my connection