Kourtney Kardashian Calls Herself an 'Eski-Ho' in Booty Shot From Iceland Trip

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The birthday girl visited the Blue Lagoon and took a helicopter to the top of a glacier in Iceland.

Even a snow-covered country can’t keep the Kardashians from flaunting their assets! On Tuesday night, Kourtney Kardashian posted a sexy shot of her hourglass figure in a black cutout swimsuit.

“Eski-ho,” she captioned the fun pic.

Kourt also snapped a shot, chilling in the Blue Lagoon Spa with some pals. Her younger sister Kim Kardashian was nowhere to be seen, but the siblings have been pretty inseparable throughout their trip to Iceland.

RELATE: Kim and Kourtney Kardashian Make an Emergency Helicopter Landing in Iceland

Earlier in the day they posed with Kim’s hubby, Kanye West, and producer The Dream atop a snow-covered glacier. Kourtney also shared a funny pic chatting with Kim, using the caption, “Do you want to build a snowman?”

The group celebrated the eldest Kardashian’s 37th birthday on Monday and took a helicopter ride over the picturesque landscape. Though they had to make a brief “emergency landing” on a golf course due to a stray seatbelt, the family seems to be having a fabulous time, posting and Snapchatting up a storm.

MORE: Khloe Kardashian Joins Snapchat and Her First Guest Is Lamar Odom

With her sisters out of town, Khloe Kardashian took her alone time to create her own Snapchat account on Tuesday. Her first celebrity guest cameo? Her ex Lamar Odom!

“This is so scary, my very first Snapchat, but I found a good filter so it’s all good,” she said. And after introducing Lamar, he said, “Wuz good, homie?”

Lamar recently opened up to ET about the estranged couple's divorce drama, saying, “We did talk, you know, everything is [under] discussion. We talk about anything. We’ve been through a lot. It won’t ever stop.”