Your mother makes an hammed up sniffing sound and smiles as she pulls over, "Haven't smelt that since Sam was in diapers..." she says almost like it was a euphoric response. She gets out and opens the trunk all of you look to see her pull out some big diapers as you blush deep red, "W-why do you haves those?"
She doesn't even respond as she takes you out and brings you to the side of the road where it's safe and starts to diaper you. You wiggle and writhe wit it's no use, you feel as thought all maturity is sucked out of you and you're once again a baby.
You gut up and waddle into the car blushing a deep red as your mother puts everything back, "Girls, do you two want a diaper too?" she asked.