We snipped his junk, so why is he still horny?

Please excuse the bluntness, but our little Boo has taken to humping his favorite cushion and I'm wondering what that's all about.

He was a street cat. When he was fixed, the vet estimated he was less than a year old. Now, three years later, he's begun humping his pillow and sometimes tries to mount his sister, who tolerates him a little and then bats him off.

At first I thought my eyes were playing tricks on me, but really, there is no other way to interpret the very specific moves he makes. He starts by "making biscuits" in all four corners of the cushion, then his butt and hindquarters start shaking in that unmistakeable rhythm. He is so intense when he does this that he doesn't notice anything going on around him. It's like he's in a trance.

What is causing this? I would have thought it could happen in the immediate aftermath of neutering until all the hormones are phased out of his system, but more than three years later? What's this about?

Also, is there anything we should do? I don't know what's going on in hims widdle head, but it seems to me that if you're regularly dry-humping a piece of furniture, that's gotta get frustrating after a while. He is a darling, tiny, sweet, very good-natured kitty, and I want to keep him as comfortable and anxiety-free as possible.

I dunno, some kitties just like to do it. I wouldn't worry unless he gets seriously obsessed.

Are you saying this is new behavior?  If so I would think it may be related to outside cats or just that time in year he would be mating.  I have a few neuters who do the same.  Gets worse when there are cats in heat outside.
 

Thanks all! Yup, it's new behavior, that's why I was concerned. It is open-window season so it's quite possible something is wafting in that's affecting him.

There haven't been any worrisome consequences, so I'll just avert my eyes and let him have his jollies.

I adopted a cat out and got a "Is this cat fixed???"  lol. Some just don't seem to get it!   Usually when they act up I set out my trap to TNR the new cat outside.  Usually don't even see it until it is in my trap.
 

When I had Wilbur, he could not live a day without mounting Patricia and biting her neck. There is only one thing that can mean: he wanted kittens. He never got them, of course. She hated it because he was 7 pounds heavier, but he never learned to stop doing that. I can only assume Wilbur did mate a queen before he was neutered because he was a stray for months and not neutered until age five.

EmilyMayWilcha said:

When I had Wilbur, he could not live a day without mounting Patricia and biting her neck. There is only one thing that can mean: he wanted kittens. He never got them, of course. She hated it because he was 7 pounds heavier, but he never learned to stop doing that. I can only assume Wilbur did mate a queen before he was neutered because he was a stray for months and not neutered until age five.

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I strongly disagree that he wanted kittens.  I have some cats who NEVER sired a litter yet will go through the motions. I got them to young for them to have had gotten any cat pregnant.
 

lol. this makes me laugh. 

I think I can safely say, guys are almost never in it for the kittens.

ha. some cats just do this. My old Harley Cat (RIP) was fixed at 6 months but in his later years would get horny. Like, after the age of 10 he'd suddenly discovered the joys of humping. He was an indoor cat and we had no other cats around so I have no idea what caused it. I told the vet and he just said some cats get like that. I am guessing there were some strays cats in heat somewhere outside and we usually have the windows open so maybe he could smell it.

catsallaround said:

I strongly disagree that he wanted kittens. I have some cats who NEVER sired a litter yet will go through the motions. I got them too young for them to have had gotten any cat pregnant.

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There is no way to know if he ever sired a litter. He was definitely outdoors long enough - at least four months - so I would not be surprised if I could get proof he was a sire.

Of course, both of my girls were spayed when they were kittens because I got them early enough for that. I knew Wilbur was not neutered the first day I met him. That is why I think he could have sired kittens the year before.

He may have sired kittens but, as aeevr said, no male cat cares if he has kittens, LOL. Toms have nothing to do with their offspring, he was just trying to get some nookie .

Willowy said:

He may have sired kittens but, as aeevr said, no male cat cares if he has kittens, LOL. Toms have nothing to do with their offspring, he was just trying to get some nookie.

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If tomcats don't want kittens, why do they want to have sex with queens?

Whatever the reason he humped Patricia, I am sure if they were not sterilized she would have gotten pregnant.

Tomcats follow their instinct.  They have the urge to mate and don't have the consciousness we have of the consequences.  They don't have the concept of conception and clueless that the kittens that show up weeks later are a result of their behavior.

The humping by a neutered cat is most likely to establish dominance.  There might a stray who has been hanging around.  This can unbalance the balance of power in the household and change the behavior in your household.