Female dog - humps leg - seriously - opinions?

[LynnKK]

Yikes, my female spayed Labrador humps her bed....nothing else....which I thought was completely weird and she is anything but a dominant dog. This has been discouraged since the first time she tried it. And, since I have had many female Labradors, is the only one who ever tried this unsavory behavior.

[TabulaRasa]

My parents' spayed female lab, who is now a senior, does this when my siblings or I bring our dogs home for a visit. Always has