Matures Humping -

As a dog matures, the behavior may persist due to hormonal changes , stress relief, or simple habit. Common Causes:

Experts, such as those at Purina , suggest redirecting the dog's focus with toys or training if the behavior becomes excessive or inappropriate. Why Do Female Dogs Hump Things? - Purina matures humping

Occasionally, it can be a reaction to discomfort from urinary tract infections or skin irritations. As a dog matures, the behavior may persist

While "humping" is often associated with sexual behavior in various contexts, it is frequently discussed in veterinary articles regarding how dogs behave as they mature. - Purina Occasionally, it can be a reaction

Some dogs use it as a self-soothing behavior to cope with high-stress situations.

For young dogs, it is often a form of exploration and play rather than a sexual act.