Gross! Justin Bieber gives mannequin long, sloppy kiss on TV

Put that tongue away, young man!

Justin Bieber's writhing tongue got its own moment in the spotlight on Late Night with Jimmy Fallon overnight.

The 18-year-old pop star shocked the live studio audience with a passionate make-out session with a mannequin's head. We're not talking pretend kisses here — it's a graphic, wet and drawn-out smooch — watch at your own peril.

The awkward pash came when host Jimmy Fallon challenged the Biebs to a basketball comp, shooting hoops with weird objects including ramen noodles, milkshakes, and that poor dummy's head.

"Don't fall in love with it, Justin, no! Focus!" Jimmy yelled at Justin, who was lost in the moment.

In a particularly perky mood, Juz answered questions about his driving record ("police really like to pull me over"), life as a single man ("I'm having fun being 18, enjoying my life, and being responsible"), and his upcoming Saturday Night Live hosting gig ("my abs are not the musical guest").

Oh yeah, he flashed his abs too. Beliebers, this is your day.

Washboard abs: Love 'em or hate 'em? Image: Getty.

Maybe Selena Gomez gave Justin the boot because of his kissing technique? Ponder this while watching the video below from happier times:

Watch: Celebrity live stunts gone wrong!

Sofia Vergara Condones Paying For SexSofia Vergara Condones Paying For Sex Kendra Wilkinson Shows-Off Baby Bump In BikiniKendra Wilkinson Shows-Off Baby Bump In Bikini Justin Bieber Stops By Drake Bell's Album Release PartyJustin Bieber Stops By Drake Bell's Album Release Party Andrew Garfield Defends Justin Bieber's BehaviorAndrew Garfield Defends Justin Bieber's Behavior Kristen Stewart & Robert Pattinson Could Have Awkward Run-InKristen Stewart & Robert Pattinson Could Have Awkward Run-In
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