The moment I see my live-in father-in-law's cock, it feels as if my womb falls in love. While my husband is at work, I give in to his advances but allow only two inches inside. He teases my entrance with shallow thrusts, occasionally brushing deeper and making my body convulse. I know I will surrender completely if his tip reaches my cervix, yet oral sex and rubbing between my thighs cannot satisfy the craving. At last I beg him to pound all the way into my deepest spot and fill me with semen.