OMG....I just wrote this huge thing about Mutation processes for the humans to have tails......and then I accidentially closed my window...and I lost it ....I'm not gonna type it all up again word for word...so I'm just gonna put it simply.
TAIL GROWTH OUTLINE
Phase one: Getting tail to grow, skin, and when will it grow
-Option:Group A: Simply either remove the Coccyx then mutate DNA or mutate the body to have it naturally brake up, useing parts of it as the start and finish for the tail. Most likely the Mutating subject will under go medium to great pain.
-Get Skin to Grow outwards with the bone.
-Two possible paths after mutation. Your Childeren will get tails when born but you wont, or Tails grow emediatly after mutation.
-Option:Group B: Splice on a tail.
Group B-END
Group A-Phadse Two:Muscle, Nerves, limitations, and shape.
- Mutate Plantaris to expand out with the tail as it grows.
- Need to some how get the body to have a nerve expanded out to tail, done by more mutations or sergery.
- Need to have the tail grow in a limited amount, don't want it growing twice the size of you. My Opinion would be to have to tail grow in relation to the body using the Golden Number Ratio, done by more mutations.
- The Shape needs to be found by finding what the DNA structure for the original creatures tail, aplied to the human by more mutations.(ie. a squirrel)
Group A-Phase Three: Fur, Genetics Pass down, and Social problems
- Need to find out how to get fur to grow on tail or just leave it the same, done by another mutation. Not very hard to find out how to do compared to the other things we're trying to do.
- Fur Color, Either use natural Human hair color, or genetically mutate the tail to have a different hair color than the rest of the body. Hair Color patterns found by checking base animal's DNA.
- Genetics Pass Down has first two roads either They don't or they do.(ties in a little with when do they grow)
*Option A:Don't, the tail will grow for you but not for your childeren. And None of the DNA is passed on through them.
*Option B:Do, Two more options
~Option B Choice1:The tail doesn't grow for you but will for your childeren(most likely not preffered).
~Option B Choice2: The tail grows for you and will for your childeren, but there is a chance that your childeren will get your wive's or husband's tail. There is also a chance of a cross beed between the two of you(ex: Your tail color but you wive's tail). Also both parents' genetics will go through with the child, being passed through their childeren aswell(like eye color or hair color).
- There ofcourse would be social problems and the creation of new terminology.
-Terminology: Full Breed, half breed, etc. Basically words to describe your tail type, like full breed would be to describe some one who's ancestors would all be of the same tail type. I think you could think up of some of your own.
- With that in mind there would be a new social order! People would call nonfull breeds low class, and people of full breed would be of upper class, sort of like with pets, or our ethnicity(I know its sad to think that there are still people who don't marry to ther ethnicities to keep their family a full blooded what ever they are). People would begin to separate into sub devisions amongst their already subdevisions(these such thing happening way beyond our generation remind you)...or we be smart and just talk about how cool our tails are.
Group A Phase Four: Mutation
-fuse all of the mutations into one chamber for efficiency.
GROUP A-END
TAIL GROWTH OUTLINE-END
I guess this outline actually makes it a little easier to understand compared to my big paragraph. But Personally I would go with The path Phase one Group A Option B Choice 2, we can live with the pain from the start of the tail growth from Group A, besides we get more benifits out of it. (Prefference: I'd probably never marry someone with a non-fur tail, just to...creapy, and unattractive)
Well back to The whole 4-8 breast thing from a while back. I personally like mine two breasts, two legs, and more humanoid. Although it would make it alot easier for certain positions*rawr*

. Other than that I don't really like it while not hating it. Its more of a personal prefference thing, one can't judge another, except for some situations. This not being one of those situations, unless your talking about nonstraight yiff(m to m)...then I don't know you(even though yes I know that most people who like yiff are not straight).