Underwear Is Overrated!! January Jones Skips Out On Skivvies At The Tonight Show Starring Jimmy Fallon!

SeXXXy lady!!
January Jones stopped by The Tonight Show Starring Jimmy Fallon on Friday, and her outfit didn’t disappoint!
The Mad Men actress rocked a slinky black Zuhair Murad jumpsuit with lace down the front AND on both sides.
Of course sheer sides means no room for underwear, so we presume Betty Draper was going totally commando. How adventurous of her!! Wonder if Mr. Fallon noticed?
Actually, we’re SURE he did!! How could he not?? Ha!
P.S. Wanna indulge in more of January’s sex appeal? CLICK HERE to see her super sultry The Violet Files spread!
[Image via Getty Images.]