I fantasize about my white wife getting pregnant from BBC

This is not a fantasy I have very often, but the past couple of days I can't get it out of my head. The thought of my chubby white wife on her back, spreading her legs for a big black cock. Her feeling him thrust so deep inside of her, and stretching her out as he pounds her married cunt. Her eyes rolling back in her head as she cums hard, and he just buries his cock deep inside her pussy, his cock head pressed against her cervix as he proceeds to empty his black balls into her waiting, fertile womb, his sperm flooding her and soaking her eggs, knocking her up.