you can mate with 4 more cats tho :|
list of cats you can mate with:
Cottonwillow (you can be a tom or she-cat)
Nightwhisper (you can be a tom or she-cat)
Dustfeather (He's a closeted bisexual so you can be a tom or she-cat, however you have to talk to him and play tic-tac-toe with him 3 times and let him win while you both are apprentices)
Duskfall (you have to be a she-cat)
Breezesong (you have to be a she-cat)
Fallenfeather (you have to be a tom)
Also you can mate with all of them if you are nonbinary or, both.