LOL, my very first breeder rats were Kibbles and Bit and Bits. Kibbles was the male and sired at least 3 litters before he went on to enjoy retirement with another boy I just had to keep.
The "bits" were two female hoodeds and just total sweet hearts. We called them Black Bits and Tan Bits. Obviously named after their color. We still have Tan Bits today and she is getting up there in rat age. I think she may have one more litter and go permanently into the penthouse cage for retirement and socializing younger females.