Perverted stepbrother trains me to be a blow slut!

My family came round for a barbecue at the weekend and of course my stepbrother was there too. The lazy sod didn't help me at all with the preparations and so I ended up standing alone in the kitchen, doing the washing up and going a bit live. To give him something to do, I asked him to bring me my jacket because I was cold, but he found something else. My sub - collar! I must have forgotten to tidy it up after the last session. He came into the kitchen with it and when I saw it, it totally triggered me. I just couldn't help myself and had to obey him at his word. First I knelt down on the hard kitchen floor and blew his cock and then he took me into the living room, where he fucked me hard on the dining table. Would you also like to put a collar on me?