No. First, a woman doesn't produce milk unless she has had a baby. The hormones that are produced after the birth trigger the production of milk. Next, you must ask a woman if you can suck her breast.
Yes its full of nutrition
Yes, assuming she is in reasonable health
No. Diseases can be carried. The milk can only be for the baby. Plus, you would be taking milk which could have been used for the baby. I don't even think that the milk would taste nice.
It is a harmless fetish unless the woman is HIV +. Otherwise no problem which i know of.
Yes, there is such a thing as milk snakes.
No, if a cat has never been pregnant and is neutered, a kitten will not be able to suck milk.
If she is breast feeding then it is absolutely not appropriate but if you mean during sexual interaction, if she allows you, knock yourself out. Most women enjoy that as long as you don't grit your teeth too hard against her nipples :)
Lactation, or milk production, is generally caused by the production of hormones (prolactin), not by manual or sexual stimulation. There are a few exceptions wherein a woman can produce milk when she is not pregnant, but again, these cases are usually hormone- or pituitary-related.
to pump blood around the bodymilkMILK AND SUCK MILKHes only a tenner MILK MILK MILK MILK
because he likes it
Whenever you want some milk.