JUR-800 - I-Cup Stepmom Corrupted: Getting Cream-pied by My Step-son Behind My Husband's Back

My marriage to Jō feels perfect on the surface, but I’m secretly dying of sexual frustration. My husband is terrible in bed, and the only person watching my misery is my step-son, Shiro. One night, he corners me right after I finish with his father, whispering, 'Let's see what happens when you take mine instead.' Now, I’m caught in a twisted cycle of forbidden lust, constantly craving the intense pleasure only my step-son can provide.