Manipulation: a toddlers story

Dear Kiki,

Earlier today at the Lee House;
"Hi Mama!  I want marshmellows mama!" Syd says with a smile.  This is how I was greeted when I entered her room this morning. 
"No sweetie, breakfast first.  Let's get a new diaper on and head downstairs."  I pick her up out of bed and waltz her around the room to her changing station. 
"I don't want breakfast right now, I want marshmellows." She replies.  This is immediately followed by, "I do it, mama.  I put my big girl diapers on."  Pull-ups are pretty fun.  Except when the toddler poops in them.  Then they are no fun for the parents. 
"I know you would like some marshmellows.  But mama says no.  Breakfast first."   At this point we are done changing her diaper and she is standing next to me - I am still sitting on the floor gatherin my thigs to go downstairs...when she put her hand on my face and says, "in a sweet soft voice "mama, please can I have a marshmellow?  Then I will have breakfast."

Oh man, what could I do. 

We had marshmellows before breakfast. 

Love,
Popo