I feel your pain.
Prayers for you. I had to put down my 16 yr old and my 13 yr old last Sept. I got two young kitties (not quite kittens) who had been rescued together but not from the same litter. I have always heard to get 2 together. It is SO TRUE!
These two are best buddies, they groom each other, hug and love each other and entertain me to the max. You can't believe the relief from grief.
Concur. We have two sets (ferals acquired by circumstance) and it does seem to work out well.