ddog acting like a randy teenager

[Boredofthinkingofnewnames]

Ddog is just turned five, hasn't humped anything for about three years. For the last week he's been acting like a teenager - tossing his bedding out of his bed and vigorously humping his cushion. What on earth is going on, is it just a phase?! He was castrated at about six months old...

[LetThereBeCupcakes]

I'm a bit late probably but is it possible there's a bitch in season some where nearby?

My boy does this occasionally and it's the only explanation I can come up with!