My kitty when I was a kid did that until he passed on at 12. It was super cute. Mine does it now but doesn't suck. She just puts her face super close to whatever it is she is kneading. I call it the kitty massage as it's mostly my stomach.
Some pics from my trip to the Czech Republic
If two people love each other, they lock up the little lock on the gate together They kiss and throw the key out to the water.