The wheel as a tool is an abstract, mathematical contraption that takes a couple of conceptual steps to get there, especially when you put an axle in there.
This, on the other hand… this is something quite immediate, tactile, instinctual.

To be fair, carving a stick to be semi-smooth is an easy task that can be done on a horny whim

Priorities.

The oldest one we’ve found is 30,000 years old. I’d be willing to bet they’ve actually been around almost as long as we’ve been using tools and enjoying sex

The real reason we domesticated animals

Brings a whole new meaning to the phrase “rock hard”

Makes you wonder what type of lube they concocted to make a frigging siltstone dildo slide with ease.