If something is mushy, it is soft and wet, like cooked oatmeal or a very ripe banana.
Mushy things can make people think of comfort, warmth, and sometimes love.
Examples:
The oatmeal is mushy and warm.
The banana is the mushiest fruit.
She likes the mushiest pillows.
I don't like mushy apples, but I like mushy bananas.
After the rain, the ground is mushy and wet.
The mushiest blanket is the best for sleeping.