Lost my virginity to my sister

We were very young the first time we fucked my sister and I heard mom ****reaming and we went to see what was happening we saw dad fucking the **** out of our mom and she was yelling harder baby I'm your slutt**** daddy out it so ****like a rocket. We watched them for a long time and then my sister grabbed m****nd and pulled me into her room and closed the door and said to me brother I want you to be my first time I want you to make me cum like mommy and make me ****ream I want your big cock I see you in the shower and it's so big