Mating season.
Each beast race has its own unique mating season. For instance, Maya's people come into heat every spring.
However, not every beast race experiences intense heat during mating season or needs intercourse to satisfy their cravings.
The Felian clan is different. As lion beast people, their mating season hits hard in mid-autumn and lasts throughout the entire winter. During this time, they are constantly in heat.
The Felian clan's heat was excruciatingly intense, driving them to seek out satisfaction or engage in intercourse to control their overwhelming urges. For Trill, however, the situation was more complicated. She didn't have a regular partner to fulfill her needs. She had certain "standards" that a man needed to meet before she would allow him to copulate with her, according to Yr. Essentially, she had her own criteria for choosing a partner. It seems that "standards" exist in this world too.
