Oh, My Stars!
If your SO’s parents are conservatives, you need to understand that you yourself, as your partner’s partner, are a crime. Your SO isn’t supposed to be fraternizing with other people, and here you are, corrupting this poor child and condemning them to an eternity in fire.
But can you imagine what it would be like to stand shirtless in front of your SO’s conservative mother? That’s what happened when the OP and her boyfriend were having teenage fun one day. His mother came home from out of nowhere, and the OP hid the closet. Thinking the coast was clear, she left her safe hiding spot and ran right into the mother and all her fury.