My parents did something?

my step mom and dad did it on my bed room dor and then my step mom gvae my dad head well he was tanding up and she was sittin on bed and i was grossed out cause i walked in on the giving head thing. i am goign to talk to her today do you think it would sound awakard if i talked to her on the phone. about it cause i am grossed out i am tepmpted to burn the side of the bed she gave him head on.