"Ok, from now on, I'm not sis, I'm Mama.
You're my little baby Tiffany. You will act and
be treated like a baby. Let's get you
diapered, come here." You walked to your
sister. She took off all your clothes and put on
a diaper with a pink design on the front. You
got up, but she stopped you. "You're a baby,
you can't stand, get back down and crawl
over here." You did so, she held you in her
arms and put on the movie. You were so
comfortable. Half way through the movie, you
had to pee, but when you tried to get up,
your sister, sorry Mama, stopped you. "What
are you doing?" "I have to pee." "You're a
baby," she said, tightening her grip. You were
surprised that she had the strength to hold
you down. You gave up, the pressure on your
bladder increasing. Eventually, you peed all
over your diaper, your sister noticed this.
"Awww, did little Tiffany wet her diaper?
Well, I better get you changed." "Sis, I..."
"You're a baby, I'm Mama and that's all you
can say." She changed your diaper and kissed
you on the forehead. Later, the pizza arrived.
You crawled towards it. "Tiffany are you
hungry? Well pizza's not for babies, I'll feed
you something more appropriate." She took
off he t shirt and her bra, bringing you closer
to her boob. Oh my God, she's going to breast
feed you. "Woah woah, sis I'm all for realism
but isn't this a bit too far?" "Relax, it's not
like it's incest, nothing will actually come out
and remember I'm Mama, and that's all you
can say." You thought about it. She was
probably right. You started sucking her boob.
It felt so good. A shock to both of you, milk
came out. Then it happened. You started
shrinking. All your body hair fell out, but the
hair on your head grew slightly longer. You
became a real baby girl. Meanwhile, your
sister changed too. She aged 6 years, and her
boobs filled with milk. She had become a
baby's mother. "Oh my God," she said.
"Mama."