>Realistic
A weekend where I only wear diapers and don't use a toilet. I'd watch baby shows from the 90s, crawl around, only eat baby food.
>Kinda realistic
"Coming out" to my flat mate and just having baby stuff everywhere, wear diapers when I want. He's pretty chill, I don't think he'd mind. Honestly I think he's into the more sexual side (and older age range) of ageplay and has been prodding me for a response over some mildly childish things I've done. I think theoretically I could do this, but once it's out the bag there's no going back, and who knows who he might tell.
>Possible but probably fantasy
Having a bf who will support me, buy me a nursery, and keep me diapered. It's a long shot, but it could happen. I actually don't think I'd want to be a baby full time or wear 24/7, but if a boyfriend invested so much in my fetish I'd have to repay him by doing as he wants. So preferably I'd only be a baby when he's home, and get to do what I want when he's not around, but the thought of him coming home, checking my butt and lightly scolding me for not wearing diapers makes me feel warm and excited.
He'd treat me little while out too, holding my hand when we cross the street, ordering my food for me, tying my laces, strict no swearing rule.
I almost had this too, without the nursery stuff. A boyfriend who was into ageplay. He used to put my pacifier in to stop me arguing. But we wanted different things in a relationship and he left me before I could even mention diapers.
>Complete fantasy
I fantasize about stuff I was into as a teenager a lot, we had this one Canadian teacher who was very motherly, and I loved the idea of her rearranging her classroom after school, only having girls in the class and diapering everyone and all of them being into it and completely regressing.
For a few weeks each summer if neither of my parents were free to stay at home, there was like this day care place, except for kids up to the age of 12. There was a more adult room for the older kids, with a PS2, a computer, a pool table etc. But most of the day was spent in the main room, and the place was a literal day care for kids younger than 4 during school time. In summer though under 5s were in the baby room. This one time, I don't remember what I did but me and my friends got in trouble. They all apologized but I decided to be rebellious and thought they'd back me up. The staff made me spend the rest of the day in the baby room, being bored. At the time it was just an annoying punishment, but looking back I wish they'd diapered me and made me play with baby toys.
A fantasy not relating to my past is one where someone has complete control over my body and can decide what age I have the ability of. So they can just make it so I don't know how to walk, or feed myself, or they can have me potty training. All on a whim.