Update and a thank you!
I wanted to thank everyone that responded to my post "male kitten marking." My five month old siamese was marking and I was at my wits end.
Much to my dismay and horror and through process of elimination I finally realized that all of the marking was not being done by Ricky some of it was, but not all of it! This I am so glad about because I can say without hesitation that Ricky has not marked in at least one week, if not longer. I have kept him confined when I'm not home, used NM for cleaner and have Feliway everywhere! It seems as though his hormones are levelling out. I can't tell you how relieved I am about this. This little guy is more like a Ragdoll than a Siamese and we just love him so much!
Unfortunately I have determined that one of my Boston's has a raging UTI, blood in his urine and crystals. I know some of you will think I'm a real dumb-dumb for not figuring this out before hand but he is 6 and has never, ever peed in the house, even as a puppy! I never thought for a minute it could have been him. Now that I know it's him, he is being treated and hopefully he will be feeling back to his old self soon!
Thanks again for all the advice, much appreciated!