Roo cousins’ stories

My name is Daniel, I am 11, I am an only child at that moment in time in which the story takes place.
I have 3 cousins (all girls) two of them are sisters, the one older than 17 is called Zoe and the younger one is 12 called Mia. My third cousin is 11, she is not present in the story, maybe in the future.
They are my mom's sister's daughters and they are almost like my sisters, we always played together and spent days at their house or at my house, we literally had clothes of us in both homes. We live only a 3-minute walk away, which makes it easier for us to always be together.

-Personality:
Zoe is the big sister who was always right and took great care of us even though she made us do strange and weird but fun things. She was a bit precocious and always tried to see down anyone's pants but in a very discreet way. She didn't mind being naked in front of me, I almost always found her in her underwear or changing clothes (I think she only did it with me, her sister and her circle of friends). she is often our babysitter.
Mia was almost my age and she was also very curious. She copied almost everything her sister did and got along very well with Zoe's friends. The only difference was that she wasn't as much of an exhibitionist as her sister, when she was, her face looked very tense and flushed. Although she copies Zoe a lot, she is usually always one step ahead of her sister. she's very smart.
I (Daniel) really like to spend time with my cousins. I think I am a child of few words who liked to tease Mia and sometimes a little afraid of Zoe. Very curious and stubborn. Willing to do any challenge that was put to him as long as he won something.
As for sexuality in my case, I knew from a very young age what a vulva and breasts were, as Zoe developed them. When we were kids, we always bathed together and when they were a little older, they played cards with penances of taking off an article of clothing every time you lost (someone always ended up naked doing something silly).
Zoe, being the oldest, knew a little more about masturbation and more adult topics. Mia was always asking me things about my penis (I think she really liked it). I (Daniel) one day became very interested in Mia and Zoe's lady parts, even though we always saw each other naked when we were younger.
Between all of us the furthest we got was simple close-up views and nothing else until that day.



-Appearance
We are Kangaroos
Zoe and Mia are identical only their eye color changes slightly. Zoe's eyes are an amber and Mia's are a little browner. Their hair is the same red color and their fur is orange and white.
Daniel has brown eyes the same as Mia's and his fur is also the same color, his hair is more brown than reddish unlike his cousins.
More information will be revealed as the story progresses.
Physically I have to say Zoe at the age of the story already had some very impressive attributes.
A wide hip with a round firm ass. A tiny waist and large sized round breasts, small nipples and a medium sized aureole. Her breasts were larger than her mom's and aunt's (they weren't gigantic either, they were manageable). She was a high school volleyball player at the time and liked to go running with me in the mornings along with her sister so she was fit.
Mia was also well equipped for her age of course, she had nice breasts a small tummy that for my concept was very adorable and a nice ass, but what caught my attention the most unlike Zoe was that she had chubby and big pussy lips. It was very noticeable when she wore tight clothes. I used to tease her about it, she would just laugh and pull up her pants to make herself even more visible. I think it was the same with Zoe, only with her thicker thighs it wasn't as obvious as it was with Mia.
In my case I was always one of the tallest in my class and I have always been slim (average) the rest is typical of an 11 year old boy already seeing the changes that puberty brings. Mia was almost my height and everyone said she was the female version of me. Zoe was logically taller.