Ok, my cat is a pervert and I don't know what to do about it - I must admit I'm almost embarrassed to call my vet and ask her if this could be a sign of a medical problem or if I just have a nasty kitty HAHAHA, Osiris is just acting really strange for about the last 2 weeks now. The last 3-4 days I've noticed him "making muffins" on blankets and acting a little strange while he was doing it, didn't figure it out right away, but saw him doing it and looked a little closer - His penis was sticking out like he was trying to mate with the blanket! Then I saw him trying to mount my IG puppy, Sara last night? I may joke that Sara's more Sphynx then IG, but that was taking the joke a little to far HAHAHA NASTY CAT! When I think about it I realize he's done it to my leg as well a couple times and it just never clicked until now what he was doing. But on a more serious note, what could be causing this sudden sexual behavior? Osiris has been neutered for a couple years at least now (not sure exactly when he was neutered - He was neutered when I rescued him and had been for a while, he's been with me a year and a half). Could the pooping outside the box be marking his territory and not actual accidents like I was assuming? Now I'm wondering if some of the pee spots I have to keep cleaning up may be partially him and not only Casper like I was assuming (Casper has been naughty since I got him about peeing on blankets and stuff - He had a nasty UTI that had been left untreated for a long time, and it's now become a habit, he's gotten better but usually if I find cat pee somewhere,I blame Casper!), which is always where I find the pee spots, but now I'm wondering.....). There are no intact cats in my house, I've had them all fixed. I may just be being a bit paranoid, but especially with him having been so sick just a few months ago that we never figured out why really, it always makes me uneasy when he starts acting different! Should I take him back to the vet, or just see if this behavior continues? He was just at the vet about 2 weeks ago and we ran basic blood work (he got really sick really fast about 3 months ago now and we just re-ran his full CBC/chem panel to make sure things where still ok). Nothing was abnormal on his last blood work but we weren't testing for anything specific.