Summary

Estrus cycle is the period of maximum sexual receptivity that the female of most mammals, excluding humans, experience just prior to ovulation. In species/monsters with estrous cycles, females are generally only sexually active during the estrus phase of their cycle. This is also referred to as being "in heat".

Graphs

Rating Distribution

Release Year

Length

Age Rating

Novels

Top Rated Being in Heat

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Similar Traits

NameSimilarity
Furry Tail Body17%
Kemonomimi Body13%
Animal Speech Personality12%
Cat Role10%
Pony Role9%
Cow Cosplay Engages in8%
Magic Tattoo Body8%
Fang Body8%
Slit Pupils Eyes7%
Pet Role7%
Unicorn Role7%
Fox Role7%
Fur Body6%
French Kiss Engages in (Sexual)6%
Bell (accessory) Clothes6%
Claw Body6%
Group Sex of One Male and Several Females Engages in (Sexual)5%
Sensual Biting Subject of (Sexual)5%
Anthropomorphic Animal Body5%
Virgin Sex Engages in (Sexual)5%