I can't stand my mothers husband. I won't call him my step dad.?

Just him breathing annoys me. I don't even think he loves my mom. He left once before. Then he came back. I enjoyed it so much with out him. Although he was alright the first time but after he left and came back I hated him. He is possibly the nastiest person on earth. I won't tell the whole story but he basically told us he would let our dogs lick the poop out of his butt that he didn't wipe. He wasn't lying I wouldn't put it passes him. I hate riding In the car with him because he smells soooooo bad. He has long greasy nasty hair and he rarely showers. If my mom says somethings okay but he doesn't I can't do it. My mom took my memory foam mattress that inherited from my grandma because she "needed" it for her back. Well it don't help her back it actually just made sleeping worse and her husband pissed all over it because he was too lazy to go to the bathroom. Then they gave me their mattress. I refused to sleep on it for two months luckily it was recently bought and barely used otherwise I wouldn't have touched it. I also walked in late after like a play practice or band concert or something of the sort and he clearly had been master bating but was pretending to be asleep with his hand in his pants. I can't stand hi any longer. Also when I miss the bus and he drives me to school he is always checking out the girls in my school.