To apply that to another case, it wouldn’t be coercive in your view for someone to sleep with a girl who was roofied by someone else at a party, even if she never would have slept with him without having been drugged.
Discussed here: Is it required to be of sound body and mind to contract?
I think I’m just gonna be a utilitarian. It’s a lot easier to defend the benefits of more freedom and capitalism than any of this “voluntaryist” philosophy. David Friedman’s criticisms of NAP libertarians in Machinery of Freedom are formidable, particularly the ray gun/flashlight scenario and the enraged misanthropic shooter scenario.