My son returns home during his break. While he was gone I came across his collection of BBW porn. I had offered myself to him in the past but now realized that I wasn't his type. So I put on some weight in hopes that I was big enough for him to want to have sex. I show off my belly, tits, thighs and ass which was enough for him to agree to fuck me. He fucks my pussy in the missionary position and then in the ass, doggystyle (simulated.) As he fucks me I tell him I will continue to eat and gain weight so he finds me more attractive.