My pregnant sister-in-law demanded my sperm to replace her infertile husband! One ejaculation wasn't enough; she wouldn't let me pull out, relentlessly thrusting until her sperm dried up… HUNTB-681

When I visited my brother's house after some time, my sister-in-law suddenly demanded that I share my sperm with her! Apparently, my brother didn't get home from get off work until late at night or early morning, neglecting nighttime activities. My sister-in-law was anxious because she couldn't have children, and if she wanted my brother's sperm, then I, as her younger brother, was the target! I was completely confused, but the unexpectedly satisfying sex made me very happy. However, my sister-in-law said, "One time isn't enough!" She held me down, preventing me from escaping, until the sperm-laden piston finally gave way. "I can't ejaculate anymore! Please forgive me!"