For this is the will of God, your sanctification; that is, that you abstain from sexual immorality... (1 Thessalonians 4:3)
If you want to see this sort of father-daughter sweetness in your home...
In Corinth, sexual perversion and immorality were everywhere, starting with their houses of worship. This "everywhere" included the Christian house of worship where the congregation was very proud while their brother in Christ lived in their midst incestuously, with their full knowledge of the fact.
This is America and the church of America, today. We are proud of our religion; of our deep theological understanding and grace-centered living. Meanwhile, our children view naked flesh and commit incest. You could call it secret, but we don't ask or put up safeguards around them, so these sins in our homes and church are don't ask-don't tell public sins.
Your daughters should never ever shower with their father! What, are you crazy? You think your husband's above that? You think your daughter would...