Is sexual desire an emotion?
Sexual desire, libido, horniness, titillation, lust and eroticism are all listed as emotions in the Atlas of Personality, Emotion and Behaviour (Mobbs, 2020).  In the atlas taxonomy, emotion is defined the perception of a neurological impulse that initiates behaviour (typically abstract nouns).

The full catalogue is available at: https://doi.org/10.6084/m9.figshare.c.4792323

Mobbs AED (2020) An atlas of personality, emotion and behaviour. PLoS ONE 15(1): e0227877. https://doi.org/10.1371/journal.pone.0227877