>>81611492
depends on your sister obviously but if that was verbatim from someone i didn't really know, i'd assume it's good-natured. not even banter, really, just a more jokey "work is torture [hyperbole], [actually] wish i was in the sun" type tone.
if she's had a history of going on at you about how SHE works and it's OKAY FOR SOME..... or something, then that's different imo.