My stepdad's stepsister already caught him fucking me in my bed and laughed at me and called me a bitch

The only person who really knows what goes on inside my family's house is my stepfather's half-sister... because one of the times she came to spend a few days here, she ended up catching me all wide open on the bed giving my pussy to my stepfather with the big cock and even saw me swallowing his cum all with my mouth at the end of sex...