I had the snakes out for some 'together time' tonight, and Houdini immediately started trying to court Harley... It was a bit awkward, considering he couldn't really tell which end her head was at and kept getting confused.
At one point they were both just coiling around my hand, and Harley started getting annoyed, so I put her back into her tank.
Two minutes later, Houdini was still trying to court his own tail... As long as he's happy, I guess