"But Mom has never let Dad ejaculate directly inside, you always let it go deep every time. Don't you have to take medication? What would happen if you got pregnant?"
"Don't talk about that anymore, Mom. I want to ask you, how did you manage to get such a small thing inside? Did it hurt a lot the first time?"
"You don't need to think so much about it. The elasticity back there is beyond your imagination. Just like the first time feels tight, it'll adjust quickly after. Do you also want Dad to ejaculate directly into your back door?"
"I think I still prefer the front, but I don't really like taking medication either. Plus, I'm a bit scared about doing it from behind. With Dad's size, wouldn't it tear if he inserted it?"
"No worries, girl. Don't think too much about it. Mom will definitely help you the first time."
"But I always feel like the back is a bit dirty. Why does Dad like to do it there?"
