Look who's already butting heads!
Jessica Alba and Cash Warren's younger daughter Haven, 13 months, went double-teaming on cuteness when she nuzzled up to the family pug, Sid.
Adoring dad Warren shared the photo on Twitter, showing off his growing baby, who's just about the same size as Sid.
The Alba-Warrens also have a 6-year-old American bull dog rescue named Bowie (named after David Bowie; Sid is a nod to Sid Vicious). The cheerful pooch kept Alba company when she was pregnant with Haven. The actress took daily morning walks with Bowie through the L.A. hills.
Haven Warren Plays with Jessica Alba's Pug Sid
Courtesy Cash Warren; Inset: Jen Lowery/Splash News Online
10/02/2012 AT 01:05 PM EDT