:The Succubus Fantasies:

"We should stop. We're getting bigger." you say.

"Stop eating?" your sis replies, "but this food is delicious! We have to anyway. Remember being a toad? No one should have to deal with that. Maybe we will get fat, but I don't care anymore. It's giving me pleasure to eat. It's what my body's telling me to do. Are you really saying we should resist?"