Two things:
1. I think all the people advocating anything to do with contracts or other legal remedies, including the OP, would do well to step back and consider the actual trustworthiness of the government, including legislatures, judiciary and law enforcement. In ANY country.
2. The people advocating abstinence on this thread, especially the women, must not know any hormonally ordinary men below retirement age very well. Especially in modern industrial societies where sexual imagery is everywhere, the level of frustrated sexual desire the average male (yes, married men too - in fact, DOUBLE for married men, talk to one sometime after he's had a few drinks) can be literal torture. In the vain pursuit of relief, men can be manipulated into doing just about anything: part with large sums of money (see the ads on this site, for example :-3 ), unwisely sign legal documents, have sex with any woman who seems remotely amenable regardless of her actual amenability or her degree of trustworthiness... I'd be amazed if there have been any objective studies on this but I feel pretty confident that only a tiny minority of women, those with certain psychiatric or hormone problems, ever experience what most men experience for decades.
Especially considering my first point, obviously no coercive solution is indicated here. The solution: a safe, over-the-counter, reversible chemical castration drug for the men who wish their desire for sex would just go away. That, or a change in society where women become MUCH more willing to assist in the safer-sexual relief of men of their acquaintance. Frankly, I think the sci-fi wonder drug is a lot more likely to happen. I would peg this as a higher medical research priority than all but the most serious current outstanding health problems - it doesn't DIRECTLY kill anyone (though it's a prime factor in an awful lot of suicides and homicides), but the positive benefits to society would be unimaginable.
(And to pre-empt a couple of other possibilities: masturbation is barely even a band-aid on LONG-TERM sexual frustration, and many men, such as myself, are simply physically repulsed by other men's bodies no matter how okay we are with other men enjoying each other's bodies.)
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But then, taken together, 1 and 2 suggest that, even this far into our development, humanity is failing in the most complete way imaginable at managing 2 very important and pressing things, their natural tendency to harm and exploit each other and the endless waste-heat vent that is the male libido. Maybe we've just run our course as a species.