James Franco congratulates Dave Franco and Alison Brie with lots of 'wuv'

Newly-engaged couple Alison Brie and Dave Franco got a very special congratulations.

Dave's older brother James Franco, who has been known to publicly prank his little bro, offered nothing but sweet congratulations to him on this happy day.

Dave may be 30, but he's never too old for some baby talk from his big brother, apparently.

(And James may want to learn how to spell his sister-in-law-to-be's name before she officially joins the Franco clan.)