Living with my brother and his wife at our family home. My sister-in-law is anxious due to the pressure of expecting her first grandchild, but my busy brother refuses her requests for sex to conceive. So, I took advantage of the afternoons when our parents and brother are not around, and proposed to my sister-in-law that I take my brother's place in having sex to conceive, forcefully giving her internal ejaculation! Saying 'once shouldn't get her pregnant, right' while repeatedly doing it until she gets pregnant. My sister-in-law, who initially resisted, ended up actively seeking out my penis after multiple internal ejaculations!
