Give me a pie

Look at me straight in the eye;
And give me a little nice pie;
You being the chief bridesmaid,
You can’t afford to come late;
If the wedding has to succeed,
Be careful how you proceed;
If marriage takes you to Nextel,
That is where you will excel.
I set out for cavity;
And I land on laxity;
I don’t know how you feel,
But I think it’s a good deal.