KATIE'S EX DOESN'T LET THE GRASS GROW!

Boytoy is back to party animal ways

- 

KATIE HOLMES’ horndog ex Emilio Vitolo Jr. has wasted no time moving on after she gave him the boot, sources revealed.

National ENQUIRER spies spotted the stud muffin, 33, guzzling hard liquor and wine at his father’s trendy New York City restaurant — surrounded by a crowd of young hotties!

“I don’t think Emilio was ever really that serious about Katie, but he certainly seems to have enjoyed all the attention he got from being with her,” tattled a source.

The couple’s romance started out like gangbusters last September, with the “Batman Begins” beauty, 42, openly parading her new beau around Manhattan and engaging in smoochy PDAs like a lovestruck twentysomething.