Alastor had been placed in his timeout box after misbehaving, he stomps a tiny hoof. "angry fawn noises!! I wants out!" He screams, before making soft crying noises

(in this au all demons are either a little or a caretaker or a mix of both. When regressed the demon in guestion turns to the age they regressed to as it is random though usually within a age bracket for example alastor is a little with a age bracket of 2-12. Regressions last anywhere from minutes to a week, any longer and something is wrong. They can fight the regression but there is a long list of side effects including: insomnia, extreme irritability, changes in appetite, dizziness, fatigue, and even getting sick. Edit: regression is also physical meaning actually de-aged for the duration of the regression when I say toddler I mean toddler though littles have vague memories of their adult selfs and when back to adult form the memories are fuzzy like they had just woken from sleep though the emotional bond stays the same.)