Regardless of how others feel about the topic in general (or how Christians feel) in looking at the collection of religions altogether they are based on the New Testmant guy Jesus who I think still promoted Old Testament beliefs except where he contradicted them (like the whole 'don't stone each other' thing, sounds sensible).
I do recall there are some old testament stuff forbidding 'encounters' and so forth. Some of these I do think would be modified (like the whole 'put the animal/person to death' stuff since Jesus seems to have ruled out the whole violent punishments aspect of the OT) but they may serve as moral guidelines.
Exodus 22:19 wrote:Anyone who has sexual relations with an animal must be put to death.
This for example, I would guess be disregarded in the religion (and something I personally find to be a ridiculous punishment, I value human life)
Leviticus 18:23 wrote:Do not have sexual relations with an animal and defile yourself with it. A woman must not present herself to an animal to have sexual relations with it; that is a perversion.
Now I would assume here that in the bible humans aren't considered a class of animal as they are in the biological science, in that regard it would be to a non-human animal. I am not totally sure what a 'perversion' is nowadays. Certainly there is no biological reproduction imperative to copulate with something you can't create offspring with, be it something of an incompatible species, same sex, eunichs, infertiles, prepubescent or postmenopausal/too old, etc. Those who advocate interest should only be motivated by multiplying (which does seem to be a biblical importance) would disregard anything of a sexual nature deviating from this (differing) to be 'perverted' I suppose.
I think there may be other uses to sexuality, personally, in a sublimated form. Like sometimes I wonder are platonic (non-expressed) sexual urges perhaps responsible to the various other kinds of social bonding we have? Is repressed homosexuality an aspect of homosocial friendships men share with other men, or women with women? Behind how we care for our pets and livestock, parents for their children, children for their parents, siblings for each other, students and teachers? Regardless, the healthy norm widely accepted is that people don't do this (homosexuality excepted in significant parts of more well-developed nations) and that, aside from being perceived as a perversion of the expected sexual attraction one has for a healthy fertile member of the opposite sex for genetically programmed reproductive purposes of the species, it can also be perceived as a perversion of what people think should be a purely platonic love. In common use the word platonic implies a level of asexuality but based on Plato's writings to me it seems more like a redirected/suppressed sexuality. Perhaps some people have realized this and consciously redirect it whereas others do not need to consciously make that choice since they are unaware of their doing so automatically.
Leviticus 20:15-16 wrote:If a man has sexual relations with an animal, he must be put to death, and you must kill the animal. If a woman approaches an animal to have sexual relations with it, kill both the woman and the animal. They must be put to death; their blood will be on their own heads.
The previous Leviticus seemed so sensible! But this is even worse than the Exodus since they also hurt the animal, not to mention, if it's with a woman than she and the animal get killed simply for 'presenting' even if nothing happens! Whereas man and animal only get killed if they actually do it. In either case, I think it's rather barbaric and the sort of thing I hope Jesus, if there's not a record of it, encouraged his apostles/disciples to ignore as outdated. Still, a lot of people are very hateful and take such violent approaches literally so I am afraid of their destructive outlooks.
Deuteronomy 27:21 wrote:Cursed is the man who has sexual relations with any animal.
Not sure what cursed means, presumably some kind of thing god puts on you like those Egyptian plagues? *shrug*
FrayedEndOfSanity wrote:Animals are emotionally safe and won't hurt you. Also, animals can't reject you.
I'm not sure this is totally true. Tamed animals, especially a person's pets, tend to be emotionally safeR but nothing is totally safe or impossible to hurt. Like, take into account short lifespans, one could be emotionally hurt if a pet dies of old age, as they tend to do far in advance of their human owners. Furthermore, animals can clearly reject what humans are doing, I can't tell you how many times I have unknowingly invaded the personal space of my cat as I walk past a table and a paw darts out to snag my sock, or how I try to brush her and she spins around and bites the brush (and sometimes my hand!). I think it would be more accurate to say that pets are often trained and in a situaton where they are not likely to reject masters. Using that trust to do something more motivated out of one's own interest than theirs would be an ABuse of the responsibility a pet owner has.
That's one thing to keep in mind since you can have a mental conversation about what the reasons are behind what we do. In the brushing example, I think brushing is healthy for the skin, causes fewer hairballs to choke on when she's cleaning herself, and keeps her cooler and lighter so that she might be willing to exercise more and not be such a fat cat.