Kim Kardashian was impressed by a private jumbo jet - gushing about the extravagance as she stepped aboard the Boeing 747 on Monday morning. Kim, who on Sunday night's Keeping Up With The Kardashians was seen admitting she used ecstasy in her infamous sex tape, described the luxury plane as 'pretty insane'. Kim explained that the plane was supplied by 'Team Adidas' for Kanye West's Yeezy brand. It's unclear if the company chartered the plane for the rapper for a promotional tour of his Yeezy brand. And it's not known where the couple and their team flew. Taking to Instagram Stories in the early hours, she gushed: 'No big deal just taking a private 747 this is how [Kanye] does it now. Only 747s. Private. I've never even heard of this but whatever!' Using her phone to video the luxury interior of the huge plane - which can seat up to 660 passengers on commercial flights - Kim showed fans a double bed set in the middle of a roomy bedroom, complete with marble en suite. 'So you know, just our room for the long flight, pretty insane,' she said. 'So this is what a private 747 is like you guys. I've never been on one before so I'm like "oh my god."