Hey I've had this idea a few years now and I am ready to be brave and try to pitch it. The idea however is base off an all male world so if you do not like that thing do not read on but that's how I invisions it and how I will pitch it.
I will go over the world and the rules, mostly the pet care rules. Ukes you can be nekos or a uke owner.
I like to be a seme neko but I will be a seme owner if you want.
On the planet mew(get it?)lives 2 sentient dominant species: The Mewmans and the Nekos.
Mewmans are the main dominant species that are very much like humans but they are all male and all tend to be very good looking and keep their good looks longer. Like never going grey nor getting wrinkles. Also there's no Pedophilia or any sex laws here really, it's all good at any age. [Not that this will probably come up in the RPs but it's out there and public sex might and that's okay too]
Mew is like modern japan[I think of shin-chan,so something like that or death note]but the RPs can be different times and even different settings. Like a farm or a travelling circles. If you have any ideas please do pitch them! Mew dose have some magic and other surprises! What could be here?
Nekos are the other main dominant species. They are a lot like the mewmans and are a suburbanite race to them. They are pets and in some way treated like how we treat pets but it's mostly very different. For one thing you can sex with them and since Neko's can not get pregnant by mewmans it's alright for all!
Nekos look like mewmans except for the ears and they have tails and fangs. They seem to have the same amount of intelligences as mewmans and similar feelings too. Since they are pets they do not have rights like mewmans do. They can not buy houses or rent nor have real jobs or vote. Nekos are fine and happy with this since they don't have to work or worry about that stuff and they get somebody to take care of them. Well the pet ones, there are work nekos and strays whom shelters are provided for and they can get odd jobs and are allowed to buy things. Nekos are breeded but they of course breed/mate themselves. Much like how we do with pets and yes some neko's are higher and more expensive than others. . Nekos are allowed to drive if the owner allows them to learn and can get a very special license for it. Depending on the laws where you live they also need a license to leave the home but all places require pet licensese for both. Most pets tend to not leave the house but can for errands and to the neko pet parks and such, again with permission and sometimes a note from owner. You can get a neko house for them to live in if you have a big enough yard otherwise they need to have their own room. They can not just live around the house as when their urges come up or if they have sex company over they need a place for it.
Now onto pet care while we're on this: Yes a space is most required for them as they are like another person living with you. So it's very nessery and their own bathroom be good but is not required. You or your spouse/family have to pay for everything for your neko. From clothes to food to toys and vet visits. Taking care of a neko is a lot like taking care of a child. But places has sales all the time and clothes and such are free sometimes. You will need to take them to the vet to keep them healthy. They should get a say in their clothes,food and living space though!
Now toys and sex. You can have sex with your neko and some are even train/breeded just for that. Just make sure that's what you want and he understands. Nekos are even gotten to be a 3rd lover or for something for the spouse to fuck while the bread winner is away. There's even places where you can rent nekos for sex. Like for your first time or practice maybe or even just to watch them and get ideas. Whatever your sexual needs maybe theirs a neko to fulfil it for you.
If you and or others you live with are not going to have sex with your neko you need to get them toys and things to help with that. A neko sex doll is about the best thing you can get them. Their are even ones that will collect the cum without them knowning so you can sell it. If you can't afford this you can get other things. A fuck pillow witch also collects cum is a good one just make sure he knowns to lock the door while doing this and put them away when done or hide them even, especially if you have children. Nekos don't really have shame but they do understand kids are to young for such things.Nekos are animals and will need to do this now and then even if you don't want them too. A good idea is to give him a time like when everybody in bed but dog may not listen to this and will hump when need be.
If you get them a companion or even let them have sex regular at a park or such you may not need sex toys. It tends to vary from neko to neko and owners. Books are good too as well as art supplies. You need to get them balls and such so they can play and exercise. Keep your neko's happy and it's okay to let them watch TV too.
Needless to say casual sex and free sex runs through if not rules the Nekos they can(especially strays)just fuck and move on to the next. They do fall inlove and have mates.
Work nekos are train to different jobs, like being on the police force. The world is not perfect and crime happens and with Neko crimes you need nekos to stop them. Nekos also have good noses for crime scenes too.
Farm nekos. Need cheap labor? Get a Neko to harvest crops for you, keep pest and thieves away and on lonely nights keeps you company in bed maybe.
Nurse or OR neko. Nekos being train to take care of people and do simple medical task. Also are live in nurses for those who need it. These Nekos are very special as they are highly intelligent and patient. So only a certain type/few can do this.
Preforming Neko. From strip club to circus they love to put a smile on your face. They can even just dance infront of your store or wear a costume. Whatever you may theirs a Neko for it!
Restaurants workers/waiters. Got a neko theme restaurant? Or wait waiers who do get tips. Seriously you don't tip Nekos.Get nekos who can carry things and do some simple math and take orders as well as write. They ar'nt trusted nor allowed to cook but handle money,sure.
Smalltime odd jobs like janitors and such. They live in city shelters with a few mewmans looking after them but may have an owner as well.
Probably can be a ton more jobs too. What you think?
There are 2 main types of Nekos:
Cat type, witch have the more feline features that are slimmer longer tails and bigger more pointed ears and fangs.

Calfuray is a high neko as special colors are.[Seme, my character]

Perry a next high neko. Silver,white hair nekos are higher than common

Common nekos, different color hair a little less common

Frits and Miao are good buddys common nekos. Frits is the Seme and loves Miao tight ass.
Owners may get more than one neko so they have a friend and what not.

Niku common cat type neko and his owner Ryan hope
Dog or K9 types are the other type of Nekos. They differ a bit more from dogs to wolves and even foxes. They have K9 features like floppy to pointed ears and short to long furryer tails and fangs.
Their breeding is not as control as cats as mewmans just like seeing what came fron their own breeding. But still yes prices vary with them too.
Dogs tend to be more aggressive and are a bit more of work pets. Like guard or police Neko. They are also harder to control when it comes to sex. When Semes get aroused they have to have it! No matter where they are and who's around and some cats and ukes are like that too.
Fang a is good fairly high dog type

Cane loves biting on and doing his buddy Talus

Fairly common fox nekos

Common dog Pip