How to make a multline form in pdf that text flows through?

I'm working on a form that could be filled out manually, or submitted digitally. Here's the issue: When submitting digitally, I have certain forms that have 3 lines for the user to fill out a significant chunk of text. Instead of it compiling on one line using the 'multiline' checkbox in acrobat, can i have it automatically wrap to the next line as the user types to the end of the previous line? Basically, there are the normal lines which need to be there. I'm wondering if anyone has a script (and how to implement) that would allow when a line is full, to jump to the next line down, flowing the text to the next line. Here's a screenshot of how the form sections look: If anyone has run across this, any help is much appreciated.

So you want a form that has 3 black lines so a person that prints it can see where to write but those 3 black lines to be linked as though they are one large content box? This is correct?

Hi Ryan, just posted a pic of what i'm after. Basically, i'm trying to flow the text across these lines as though it was one content box. You're spot on. I imagine there may be a script for this, but I'm clueless as to how to implement it at this time. Thanks for replying.

I have never created a PDF with such needs but a quick tought from similar stuff(in ActionScript or HTML/CSS, JavaScript) is that maybe you are using Single Line text inputs. instead of something like Text Box(supports multiline text) ..but thats just a guess.. I'll have to try this and come back with an answer

This last answer works, but when typing to the end and appears on the next line down, it seems to "eat" a letter. For example, if the last word on the first line is "simple" but it only ends at "sim", it goes to the next line but it only shows "le" and the "p" doesn't appear. I would have to go back erase and retype the "ple". It's really strange, but I guess you can't have everything/