[Avodah] De-Chokifying Arayos (including MZ)

[Lisa Liel via Avodah]

On 7/20/2015 4:34 PM, H Lampel via Avodah wrote:
> Here is Pines' translation of the pertinent passage:
>     MN 3:49
>     As for the prohibitions against illicit unions, all of them are
>     directed to making sexual intercourse rarer and to instilling
>     disgust for it, so that it should be sought only very seldom. The
>     reason for the prohibition against homosexuality and against
>     intercourse with beasts is very clear. For if the thing that is
>     natural should be abhorred except for necessity, all the more
>     should deviations from the natural way and the quest for pleasure
>     alone be eschewed.

So isn't that problematic? The idea that sex is something dirty and
should be avoided except when necessary sounds like something out
of Christianity. I understand that MN isn't a code of law, but what
possible source can the Rambam have for this attitude?

Lisa