Parent's names:

First letter of your actual parents names.

A - Sand(mother) Fire(father)

B - Feather, Crow

C -  Sorrel, Bracken

D - Fern, Dust

E - Leaf, Moth

F - Bright, Cloud

G - Cinder, Lion

H - Silver, Grey

I - Willow, White

J - Blue, Oak

K - Ice, Fox

L - Cherry, Mole

M - Dove, Tiger

N - Birch, White

O - Smoke, One

P - Snow, Scorch

Q - Bumble, Bee

R -  Doe, Deer

S - Dawn, Dusk

T - Moon, Sun

U - Light, Dark

V - Poppy, Berry

W - Misty, Black

X - Purdy and his fat mice (lol I think our brains died)

Y -  Tawny, Rowan

Z - You choose

Suffix:

Month your parents were born in.

Jan - Flight

Feb - Blaze

Mar - Spring

Apr - Shine

May - Frost

Jun - Fern

Jul - Foot

Aug - Tuft

Sep - Branch

Oct - Light

Nov - Stem

Dec - Step

Now go to the appearance generator and use the first and second part of their warrior cat name.

Amount of siblings:

Your eye color

Blue - 1

Hazel - 2

Brown - 3

Green - 0

Other - You choose

Sibling names:

Prefix.

Fav cats out of...(choose 1 for each sibling)

Firestar - Stream

Graystripe - Mist

Ravenpaw - Feather

Bluestar - Flower

Lionheart - Small

Sandstorm - Dust

Dustpelt - Sand

Redtail - Grass

Yellowfang - Bounce

Suffix:

Least favorite cat(s) out of... (choose 1 for each  sibling)

Ashfur - Pelt

Hollyleaf - Stem

Bramblestar - Fang

Dovewing - Feather

Lionblaze - Flame

Alderheart - Claw

Leafpool - Pond

Leafstar - Spot

Now go to the appearance generator and use the first and second part of their warrior cat name.

I got Cherryfoot and Tigerstep as my parents, and Bouncespot as my sibling. @Pen-how got Sandflight and Liontuft as her parents, and Mistclaw and Smallspot as her siblings.