Nudity is not sex work. As a rule of thumb, it it's common in mainstream Hollywood it's not sex work yet. Is sexual, but nobody is having sex for money.
I think the boundary is sexting and we'll... The JOI. You are paying for somebody to assist you in you having sex. Still, the performer is not having sex, so it's a gray are.
The second it becomes clearly sex work is when the performers stats to jerk off herself ot another person physically.
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Look at it this way? Do you tell a woman you want to have sex with or make put or just kiss "you are a slut, a promiscuous woman, you are a prostitute, let's have sexxx"... If you have experience you know that if any talk, it has to be sweet talk or mirroring her talk. It's the same with creators. If they want to get nude, but people start calling them whore or sex-worker... You are only giving them reasons Not to do it. All women are like that. Don't be a nice guy, but don't be what they consider gross either, just play it cool.