My brother and his wife, who live with me at our family home, are struggling with infertility. Desperate for a child, they asked me to provide my sperm! I never imagined I'd get to have sex with my beautiful sister-in-law with my brother's approval!! This lucky turn of events made me happy, but the sex was under my brother's watchful eye! The purely functional sex, where my sperm was the only goal, was honestly disappointing... However, it turned out that my sister-in-law enjoyed it more than I thought. Later, when my brother wasn't around, she invited me for super enjoyable unauthorized lovemaking!
