Stepson impregnates me after stepmom's unexpected proposal

I was taken aback when my stepmom came up to me and proposed a wild twist. She wanted me to impregnate her stepson, my future mate. At first, I was hesitant, but then I realized it was the perfect opportunity to finally fulfill my desire for a baby. My stepson, a young man with a big cock, was more than willing to help me achieve my dream. We started slow, with him teasing my big natural tits and ass, before moving on to more intense acts. I let him take me from behind, my fat body bouncing as he thrust into me. Then, we switched to cowgirl, where he continued to ravish me, his hands exploring every inch of my chubby body. Finally, we finished off with a hot 1on1 session, where he took me from behind, my bra falling off as he pounded me. This was just the beginning of our journey to create a beautiful baby together.