To be fair, it's Khloe who essentially admits to Kylie getting the lip fillers. Khloe believes that if you get a procedure done that you should "cop (or "cough", can't make it out) up to it", which is probably why she invited Kim and Kendall and the Kamera Krew along to enjoy a spot of afternoon tea while she got her arse lasered. No joke, a full afternoon tea gets wheeled in for Kim and Kendall. That's the most surprising part to this teaser.
After the bum lasering, we get the lip confirmation, and then the trailer moves on to Kourtney banging on to Scott about fixtures and fittings because that's what generally happens to your priorities once parenthood arrives.
