Did Chrissy Teigen smoke while pregnant?!

Well, no, but she pretended to at her 32nd birthday party last night in Los Angeles. Partying alongside Kim, Kanye, and of course, hubby John Legend, the Twitter icon and model goofed on the retro practices of the 1970s (including smoking on planes while pregnant) at the Pan Am Experience, a throwback to the glamorous days of air travel.

The bash took place on a faux 747 and came complete with bingo, a few smiley stewardesses, and naturally, plenty of all-out retro style choices.

Click through for peek!