Daddy's and BabyGirls...

Little or baby girl

An adult , usually female who needs , craves , desires , and seeks a Parental/child type relationship . Which is not related to incest or taboo sex . Even tho most have sex with their Parental relationship , but not while in LITTLE / BABYGIRL mode . As an adult " little " generally they do not wish to have sex with their Daddy. They just need that Father figure type to worry over them , fuss over them , take care of them and wipe away tears. Make them feel secure when they are frightened , and that means ALL fears , not what He feels should be my only fear.

Wikipedia defines:

Age-play

Ageplay or age play is a form of role playing in which an individual acts or treats another as if they were a different age. The practice can be regressive, in which the goal is to re-experience childhood, or sexual, recreating a sexual relationship with people of the pretend or true ages. Generally this can involve someone pretending to be younger than they actually are, but more rarely can involve assuming an older role.　

Non sexual Age-play

In non-sexual age play, people act as if they were a different age without the involvement of sexual acts, often with the goal of reliving childhood. This longing to go back to a certain age and time of a person's life is often connected with nostalgia.Age play is also commonly done by children when they play games such as "house" and take on roles of a nuclear family, which typically consists of a father, mother, a child or children, and/or a baby.

This is written by a Daddy Dom:

Transactional Analysis talks about three roles. The child mode is able to play, and be good, seeking security from the parent. The parent protects and loves the child. To live a healthy life you should be function at various times in all of these roles. DD creates an arena for two people to function in an atmosphere for fun and security for the submissive and where her dominant protects and guides her. This relationship affirms needs and identities for both participants and works best in a context of love and trust. Ideally this is only part of the relationship between the two parties and they often also relate sometimes as adult to adult or even child to child playing and enjoying all the possibilities, even though DD is the foundation of what they have. There is something sacred and idyllic about this form of bsdm power exchange. It creates a magical world for 2 people to love & grow in different ways. Legitimate Daddy Doms oppose all predatory conduct and support SL terms of service accordingly. .