RD-981 - Humiliated Mature Woman, Forced into Servitude by Brother-in-law

After her husband vanishes leaving behind a massive debt, the protagonist's brother-in-law, who acted as a guarantor, arrives to collect. Seeing she has no money, he forces her into sexual submission. What starts with fingers quickly escalates into intense anal penetration, leading the 50-year-old woman to surrender to forbidden pleasure. 2 episodes included.