Helping Impregnate Mom

She said she just needed you to cum in the glass so she could take it to the doctor to have it put inside her or whatever they do to make a baby when your husband didn't have what it takes I guess. But there wasn't even a lid and it really seemed just like a glass she got out of the cupboard. Poor mom just didn't understand how these things really worked......but once she decided the cut wasn't going to work, she came up with a perfect plan!