Brielle Zolciak-Biermann -- My Lips are Sealed

This is the new normal folks ... Brielle Biermann -- daughter of ex "RHOA" star Kim Zolciak -- getting lip injections, because being 18 just isn't good enough.

It looks like this may have been a 2-for-1 deal, because Brielle and Kim covered their faces Wednesday as the arrived at LAX.

Brielle posted the gnarly procedure in time lapse. She says, "my lips are my biggest insecurity and I'm so happy with the results now!"