To answer the question.
As it's about legalities I have really no idea and it of course changes from country to country but: I'd say that it depends entirely on how much this "genetic predisposition" influences said behaviour.
But there, are of course, other factors that should be taken into consideration.
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The problem is that our genetics influence how we live, to what degree I can't say but very much indeed, would be my guess and people might get problems if they find themselves in situations.
For the sake of argument, take someone who has the "genetic predisposition" to be a 'adrenaline junkie' or just has the need to move around and need much personal space (and why not add a hot temperament?) ends up in a situation where they work in a small space, surrounded by other people.
They can't move and aren't given the space they require, add in the temper and it sounds like dynamite to me.
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But if it's about legality, and as this seems to be about sexuality.
One just have to ask oneself if the behaviour should require the legal system and if that case why?
Does behaviour hurt another person physically or mentally or economically?
Would the legal system do more damage than the behaviour itself
Etc.