Kourtney and Kim Kardashian may be the eldest sisters of the Keeping Up gang, but these two mommies showed everyone that they're not too old to show off their killer legs -- plus a bit extra! Click through the gallery to see Kourtney's wardrobe malfunction and Kim's maternity mini-skirt!
The sisters left a restaurant arm in arm during New York Fashion week.
Kourtney's long camel wrap dress was left open in the front, revealing a pair of briefs -- and an errant butt cheek!
Kim also struggled to keep her own private parts covered while wearing a leather mini-skirt -- apparently one of her favorite looks from the weekend.
Kourtney has been actively stepping up her sex appeal since her split from long-time boyfriend Scott Disick.
Kim was not ashamed to reveal her pregnancy cellulite -- most women have it!
Kim's see-through top left little to the imagination.
Thigh-high boots seemed to be the order of the day.
Do you think Kourt and Kim rocked their looks?