Room mixed up - stepson gets blowjob

My #stepson sometimes stays here at the weekend when he goes to #parties and is always so nice and helpful. But this time it was different. The way he kept looking at me sometimes struck me as odd but I didn't think anything of it. My husband was away on a business trip and wasn't there. Suddenly he came into my room and said that he had actually made a mistake and started fingering me. I liked it and I just joined in and started wanking his cock and then blowjob. But he had it thick as a fist behind his ears and knew what he wanted. He then sprayed everything on my tits. But no one should know that he has such a fetish. It was very cool for me.