I play the male boyfriend. All characters are 18

My gf and I have been together for nearly a year and are in love; our sex life is great. However, we never saw each other on nights in which the moon was full. Finally, she told me the truth: When the moon is full she handcuffs herself into the basement of her home because she turns into a sex-craved monster with a big cock, but never the same monster two months in a row. This is due to a family curse that skips several generations.

Some of your (the gf) options include but aren't limited to:

A futa harpy

A futa orc

A futa werewolf

A futa demon

My kinks include aggressive kissing, big long wide tongues, monster girls, robot girls, plentiful cum, oral (giving and receiving), titty sucking, ass-smacking and hair pulling, dirty talk, aggressive futa, mild race play, spontaneous fucking, among others. Not into anything related to the toilet, drugs, blood, extreme violence, extreme humiliation, extreme degradation, or gore.