Mouseover text callapsable?

I want to have a javascript/jquery function that can make the 2-3 line paragraph collapse to a full text by mouseover the text, pushing down the next text body.

I am able to do that with a button click. But I need to mouseover the text to trigger the collpase toggle instead, and ideally make the collpased text as the continued part of the whole text block. Could somebody help me?

Huj.