Am I a bad person?

So my boyfriend came over a while before my mom got out of work and we were home alone because she thinks I'm a little angel and never does anything sexual but me and my bf were walking around the house just hanging out and he ended up bending me over my mom's bed to spank me and fingered me 😵 but I feel really bad because it was my mom's bed?? Does this make me gross or a bad person??