Please help me, I have done something terribly wrong but it is not at my will. My sister's husband made me do it. I have been living with my sister for about a year now because of work and my sister's place is more fun than my parent's but last month, my sister's hubby's brother flew in from Finland and has been staying with them. I know I am not supposed to like my sis' BIL but I do, I fell for him right from the first time I saw him when he came for my sis' wedding and I have been in love with him since then though we hardly talked so you can imagine my happiness when he came over to stay with us but with how I have tried to get him to like me, he keeps avoiding me because he has a girlfriend that keeps coming to our house like as if she is jobless. On Saturday, I think I did too much because my sister's hubby noticed me trying to seduce his brother but he didn't say anything till my sister went out and he called me to his room, before I could say anything, he asked me to remove my clothes, I was so angry, I tried walking but then he told me that, since I want to force it all on his brother, I can as well share it among them and he would put in a good word for me. I don't know what came over me but I did it, I did it with my sis' husband and since then I have been feeling bad because my sister did not deserve this. Out of guilt, I left their house yesterday and my sister has been calling to ask what happen that if it is her BIL that offended me I should let her know so she can talk to him. I fell bad and I want to tell her the truth but I don't know if that is the right thing to do. Please what should I do?