Horny Brother

My brother is 16 and horny all the time i hear him in his bedroom wanking off,I thought i seen him looking at me but wasn't sure so decided to test him,I wore something sexy which got him to look and he couldn't get upstairs fast enough,I soon followed him he pulled down his boxers and started jerking off,I was shocked and turned on by him doing because of me,I decided to give him a helping hand i took everything off and entered his room to see if he needed any help and soon as he seen me naked he shot his load in my direction.