My father's new wife was younger than me and had big breasts, so to be honest, I looked at her with sexy eyes! One day, when the rain suddenly started falling, I was hurriedly helping my stepmother pick up laundry from the balcony, when my underwear was visible! I couldn't hold it in and got an erection! Although she couldn't hide it and was found out, her stepmother, who had no night life, was in a state of frustration and had a father at home, came to ask for sex...