Mrs. Cake

Wife of Carrot Cake and co-proprietor of Sugarcube Corner

Mrs. Cake is sweet most of the time, but lays down the law if somepony breaks the rules.

Pinkie Pie is a prostitute, currently pimped by Mrs. Cake and Carrot Cake.

Carrot Cake is infertile and his children with Mrs. Cake are from donated sperm.

Mrs. Cake cuckolded Carrot Cake, thus explaining her Pegasi and Unicorn foals.