Kourtney Kardashian CAN'T Handle Kim Kardashian's 'Inability To Let Loose' In New 'KUWTK' Teaser

It’s still tense between sisters Kourtney Kardashian and Kim Kardashian West!
As if things weren’t already icy enough between the pair, it gets even chillier when Kourt calls out her little sis for her “inability to let loose” during a dance class.
Watch the drama unfold (above) on Sunday’s episode KUWTK at 9 p.m. PST.