Said It Here

Kitten mounting and humping after coming home from vacation

Returning from vacation can coincide with a young kitten starting to mount other pets and people, engaging in full pelvic thrusting and biting the neck. Because vets may dismiss this as harmless play at 4.5 months old, owners are left dealing with sleep disruption and worry that the behavior will become an ingrained habit causing severe stress.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

  1. 1
    Moving from the couch to a chair
  2. 2
    Putting the cat down or standing up to stop the behavior
  3. 3
    Seeking a second opinion from another veterinary clinic
  4. 4
    Planning to neuter the kitten earlier than the original vet recommended
  5. 5
    Trying to manage and redirect the mounting and biting behavior

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/cats2 people · September 2026 – October 2026

“For the past couple of weeks, the 4.5-month-old has started constantly trying to mount the Birman.”source ↗

“He firmly bites the back of his neck (scruffing him) and engages in full pelvic thrusting.”source ↗

“This happens multiple times throughout the day, and lately, the kitten has started doing it at night as well, disrupting everyone’s sleep.”source ↗

“I talked to my vet about getting the kitten neutered, but the vet dismissed it, claiming it’s 'just playful behavior' and that 4.5 months is too young to neuter him, telling me to wait until he is at least 6 months old.”source ↗

“I’m really worried this will turn into an ingrained habit, create severe stress for the older cat, or lead to territory/litter box issues down the line.”source ↗

ToMars_ · r/cats · 55 upvotes

“since we have been home from our vacation, he comes to me and immediately starts to make sin cookies. It makes me uncomfortable and I put him down, but he comes back, so I stand up.”source ↗

MusasPaw · r/cats · 11 upvotes

Where this came up

People with this problem also raised