Two women kiss at the conservative Alliance Vita rally in France (© Gerard Julien/AFP/Getty Images)

Two young women, identified only as Julia and Auriane, hijacked an anti-same-sex-marriage protest in Marseille, France, last October with some smoldering activism of their own.

Uggie the dog licks Best Actor winner Jean Dujardin after 'The Artist' won for Best Picture at the 84th Academy Awards on Sunday (© Chris Carlson/AP)

Grafitti artists Alexis Creque and Russell Murphy grabbed a final, handcuffed kiss outside a Manhattan Criminal Court on Aug. 16.

French actor Jean Dujardin was smothered with kisses from "The Artist" co-star Uggie after their movie became the first silent film in 85 years to win the Oscar for Best Picture.

Video still of Rihanna kissing Chris Brown (via necolebitchie.com, http://aka.ms/rihanna-kiss)

Chris Brown and Rihanna’s smooch on Instagram hinted at their reconciliation and made the world say, “Hell no."

'Justice League' #12 depicting Superman and Wonderwoman kissing (© Jim Lee via Facebook, http://aka.ms/superman-wonderwoman)

Superman smooched Wonder Woman on the cover of DC Comics' Justice League #12, proving that superheroes also break the "don't date people from work" rule.

Video still of Carrie Underwood kissing a kid (via MSN Now, http://aka.ms/carrie-kiss)

Carrie Underwood made a 12-year-old fan's year by being his first kiss at a Louisville, Ky., concert in September.

Video still of a dolphin 'kissing' a dog (© OneWorldOneOcean via YouTube)

We went "aww" at this clip from the IMAX movie "Dolphin," as Flipper flips out after smooching a pooch.

Video still of a long-distance kissing device (© Lovotics.com via New Scientist, http://aka.ms/kissingdevice)

We met the "Kissenger" this year. The device lets users wirelessly transmit their "kiss" to a loved one via "pressure sensors" and "actuators." Ewww.

President Barack Obama with schoolchildren (© @BarackObama via Twitter)

Two youngsters upstage the president at a photo op in this photo.

Video still of an affectionate couple, allegedly a teacher and student at the same school (© New York Daily News, http://aka.ms/teachermakeout)

New York City high school teacher Julie Warning, 26, was busted smooching student Eric Arty, 18, amid reports he seduced the educator for a $400 bet. Urghs all around.

Video still of a reporter kissing Will Smith (© TMZ via Business Insider, http://aka.ms/smith-kiss)

Will Smith responded to a surprise kiss with a surprise slap at a Ukrainian press junket in May.

Video still of David Letterman kissing Amy Poehler (© OfficialTrailers365 via YouTube)

David Letterman planted a surprise smacker on Amy Poehler in November, trying to upstage the "Parks and Recreation" star's on-air kiss with Joe Biden.

Two male marines kissing (© Gay Marines via Facebook)

Marine Sgt. Brandon Morgan kissed boyfriend Dalan Wells upon returning home from Afghanistan in March. The picture went viral as a symbol of how the military's "Don't Ask, Don't Tell" policy was dead.

Here are the kisses that swept us off our feet in 2012

12/31/2012

Public smooches are truly wondrous things. Whether it’s an innocent peck or a raunchy slobber fest, they're our way of saying: "This thing we have right now? We want everyone to know … it’s awesome." And 2012 saw some truly memorable make-out sessions. From presidents and movie stars to proud gay Americans and even prouder Carrie Underwood fans, click through our gallery to see some of the best lip-locks we just can't forget and read more about each of them via the links below.