You know sometimes photographers get a bad rap because sometimes porn shows photographers fucking the models in the moment of their session or one bad photographer threatened a client to reveal her photos to family or on social media now called in legal terms "Revenge Porn".
In 41+ years I can honestly say I kept my ethical bounderies. However, when a girl comes back who is or was a model but business is done and wants to fuck or have a relationship I feel that is indeed morally and professionally fine.
Only once did I cross the line but it was the model who in the middle of the shoot started grabbing my crotch and proceeded to suck me right there on the set. We moved quickly to my studio bedroom where we do live webcams and she went crazy fucking me and squirting all over the place.
After that she became a regular at my apartment, eating, sleep overs and lots of sex. Even once after that she had me eating her out on a remote set location just before she did a dildo and squirt video.
That Crazy girl was Skarlette Skye, a divorced mom of 2 who was to appear in the magazine but her main income has always been as an escort.