Some serious Bribing.... Grapevine Texas Family Photographer

I want to know what this smart mama bribed her FOUR boys with to get them all to play so nice for family photos? I mean, we all know how much boys (of all ages) love to get their pictures taken. Give them a choice of dressing up and being photographed for an hour or scrubbing toilets and changing poopey diapers and believe it or not, they'd probably choose anything BUT the pictures. But these boys got an A+ for picture day! I think this mom has some tricks she needs to share with the rest of us.