Heidi Montag3

Playing it up for the paparazzi, Heidi Montag and Spencer Pratt were up to their usual self promotion at LAX Airport in Los Angeles on Sunday.

Being dropped off to catch an outbound flight, the “Hills” co-star couple proudly showed off their new book “How to be Famous” as they kissed one another while passing through the security checkpoint.

With their new book due out on November 16th, Heidi and Spencer joked with Playboy of their 2010 plans, “We’re going to adopt an African baby, date Vince Vaughn, shave our heads, pretend Spencer is trapped in a balloon and have octuplets.”

The “Hills” lovers also chatted about Brad Pitt and Angelina Jolie’s well-plotted press power, as Heidi told, “Well, we wouldn’t want to piss them off. She might steal Spencer-you know, because she steals people’s husbands! But seriously, we’d love to sit down and discuss fame with them. Consider this your formal invitation, Brangelina. Let’s hang out sometime. We’ll be SpeidiLina!”