Stepmother fucked in a cold house

The boy is in a cabin with the stepmother and the boy's father has to go out. The boy locks the door where they keep all the clothes and the house has no heat. After a while the house is very cold and they curl up on the couch to keep and share the heat. The boy can't help but get horny and the woman notices that the boy has a hard cock. So horny is the boy that he fucks the stepmother and says no, but she lets him fuck her without any resistance