Itadakimasu, Ookami-san.
Uke is a wolf and seme is a rabbit. Uke and seme crossed path with each other when they were young and little, seme came down upon uke hitting each other’s head when seme was done picking fights with other wolves. Uke saw that seme was injured and licked his wounds because it’ll heal faster. After putting a bandaid on seme’s wound, uke suddenly went into heat and told seme to run but but seme’s rabbit ears. That’s why uke is afraid of going into heat and is holding in all the heats inside of him.
Mukuwarenai Koi no Uranaikata