My Husband Little Brother Dominated Me

My husband teenager brother stayed here while my husband was away for a month, he was like that little boy who go around thinking he is an adult and I was a bit angry with him staying since I never really get along with him, one day when I was getting dressed in the morning and while I was putting my shirt he entered the room and grabbed me breasts and hen pushed me to the bed, he toke my panties off and he told me that if I tell everyone he was going to say that I was the one who initiated and I got scared, he made me bend over the bed and take the little clothes I had and he fucked from behind while also telling me to say that I loved his cock and I was his little sextoy, he cum shortly after I cum and told me that he loved his little toy and kissed me, I was too weak to protest and he left me alone in my room, I felt really gulty because the orgam was actually really good like the best one I ever had and I was really turned one by this even though I was being forced, we keep having sex like this and it felt really good, until one day he asked me to wear lingerie arund the house and that day he fucked me in the living room and while we fucked he asked me if that felt good, to I ended screaming that it was amazing and wanted wa the best sex of all my life, after that he asked me if I wanted to be his fuktoy to what I answered yes and I cum while he played with my breast then he bend me over a table and fucked me until he cum, after that we have been having sex two to three times every day and I and loving being a sub for him, calling him master and acting all sexy around him, its a life style I never experienced before but its the best and most erotic thing I have done and its kinda hard to explain since its almost like forgeting about everything else and only caring about one person completely , there are sill two weeks before my husband return and we plan to keep this relationship in secret but still going.