I surprise my stepbrother masturbating, I give him a blowjob on his hard cock until I swallow his white cum (POV)

My stepbrother was masturbating and I discovered it, I couldn't help but try his black cock and suck it until it was very hard, I filled it with a lot of saliva, I put it in my deep throat and I took out his thick white milk with my mouth until I swallowed it.