נאנחת מעונג ולא מכאב
Sighing with pleasure rather than pain
https://english.stackexchange.com/questions/404800/is-there-word-like-excruciating-but-relating-to-pleasure-rather-than-pain
https://dictionary.cambridge.org/dictionary/english/sigh
PLATO
http://opera.stanford.edu/iu/libretti/semele.htm