I used to think I had no right to having my wants met and it was wrong to have wants. Now, I am a person who always ask for what she needs and wants (as long as my wants are in reason), but I do prepare myself that the answer may be no or modified from what I originally requested.

There is no harm whatsoever in asking for an extension. I would suggest you prepare how you will handle an answer other than what you want.

*by reason I ask myself the question: if the shoe were on the other foot would I do it for them. And, sometimes I just put it out there.