Do neutered cats still get boners? To some this is a rude question but if we answer it purely from a physiological viewpoint and scientifically it’s okay 🙂 . The answer is YES based on my personal experiences of observing my cat companion, Gabriel.
He’s neutered and to my slight embarrassment he likes to have sex on my left and right arm when I wear a grey fleece dressing gown. He favours my right arm.
After he has ‘done his thing’ he jumps off and sits on the floor ready to clean his willy. I therefore have a clear view of it and it is a boner at that time.
He takes about one to two minutes to lick it (and the surrounding area) clean and it retracts into him during this time.
The domestic cat’s penis is interesting because the cat can move it to a certain extent left and right or forwards and backwards like a finger.
It is quite a flexible piece of anatomy unlike that of the male human. There are muscles inside connected to nerves for the cat to control his penis like this.
As you almost certainly know, the domestic cat’s penis is barbed so that when it is withdrawn it stimulates the female to ovulate. It hurts her and she swipes at him and yowls.
Clearly removing the testes does not stop a cat having an erection. But there is no sperm. It seems that the hormone testosterone produced in the testes (now removed) is not the only trigger to a boner. An erection is the result of a “complex interaction of psychological, neural, vascular, and endocrine factors…”. It must be these other factors which results in the successful erection. Testosterone is the primary sex hormone.
Although my cat likes to do his thing regularly it is entirely automatic and unthinking. It has to be because there is no chance of procreation doing it on my arm while being neutered
That’s about it on this subject. Anymore and it might get embarrassing or rude.
P.S. No comments from trolls please.

Hey! my 13 year old neutered cat does this as well, however not on my arm. Daily he gets a boner and humps fleece blankets, then licks his little pink boner. I don’t mind, except the creepy part is he prefers to do this close to humans while making eye contact with them and breathing heavily. He is the best behaved cat Ive ever had other than this weird behavior. Hey, no one’s perfect.
Why do you let him finish? Kind of makes it seem like you’re a zoophile.
Oh well. Nothing to add. Have never seen this.
Thank you Annette for commenting. I think the liquid that you are referring to comes from the prostate gland. There is no sperm but the prostate gland still produces a liquid.
To my horror, my newly adopted male cat had a big ole boner after prancing on my shoulder and arm awhile! I had no idea this could happen after being neutered! I have another male neutered cat who never gets boners.. I’ve seen him clean himself after he’s pranced around on my soft blankets then cleans himself afterwards.. no penis. He does do this wiggle every 2 seconds over and over! And something wet comes (lol) from both cats during their prancing rituals! What IS it?
Yes, is the short answer.