London - It's the sort of 'baby hint' dress that excited first time moms-to-be pick just as soon as the pee test's registered positive.
Last night at a Clinton Foundation bash in London former First Daughter Chelsea Clinton stepped out in a $5,000 Vera Wang frock whose frontal folds and layers 'could have hidden an AK-47', never mind a fledgeling pregnancy.
Fulsome swathes of purple silk draped over a cute little black dress did an excellent job of drawing attention away from what some describe as Chelsea's 'best feature' - her chubby, chipmunkish face.
It prompted one London fashionista to tweet that 'something's probably gestating inside lucky Chelsea' in what cruel detractors of Mrs Mark Mezvinsky's sartorial style immediately dubbed her 'Alien' First Trimester look.
This morning UK papers were showcasing some rather unflattering sideways posed photos of radiant Chelsea that made her ass look like a couple of pumped-up balloons lurking behind those expensive silken folds.
One Red Top fashion editor even queried whether the generously pleated purple outfit could eventually double up as a baby sling as pix of Chelsea flooded the headlines.
A spokesperson for the Clinton Foundation where Chelsea works said today 'No Comment' on the pregnancy issue.
However that was a good three hours before Mrs M was spotted getting out of a limo outside a famous Harley Street obstetricians where it is believed she had an appointment.
Expect the patter of tiny feet in time for Thanksgiving.