Love was in the air at the 57th Presidential Inauguration on Monday.

President Barack Obama and First Lady Michelle Obama acted positively smitten throughout the inauguration's festivities, stealing kisses everywhere they could, from the swearing-in ceremony in the morning to their dance at the Commander-in-Chief Inaugural Ball later that night. After 20 years of marriage, the Obamas seem to know how to keep the romance alive.

Click through the slideshow below to see photos of the Obamas' best inauguration day kisses.

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  • President Barack Obama kisses first lady Michelle Obama after being officially sworn-in during the 57th Presidential Inauguration in Washington, Sunday, Jan. 20, 2013. (AP Photo/Brendan Smialowsi, Pool)

  • President Barack Obama kisses first lady Michelle Obama as they speak to supporters and donors at an inaugural reception for the 57th Presidential Inauguration at The National Building Museum in Washington, Sunday, Jan. 20, 2013. (AP Photo/Charles Dharapak)

  • President Barack Obama kisses his wife Michelle after the ceremonial swearing-in at the U.S. Capitol during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Paul Sancya)

  • President Barack Obama kisses first lady Michelle Obama after the ceremonial swearing-in at the U.S. Capitol during the 57th Presidential Inauguration in Washington, Monday, Jan. 21, 2013. (AP Photo/Carolyn Kaster)

  • President Barack Obama kisses first lady Michelle Obama in the presidential box as bands march past the White House, Monday, Jan. 21, 2013, in Washington. (AP Photo/Gerald Herbert)

  • President Barack Obama kisses first lady Michelle Obama as their daughters Sasha, left, and Malia, second from left, look on during the Inaugural Parade, Monday, Jan. 21, 2013, in Washington. (AP Photo/Gerald Herbert)

  • President Barack Obama kisses first lady Michelle Obama as their daughters Sasha, left, and Malia, second from left, look on during the Inaugural parade, Monday, Jan. 21, 2013, in Washington. (AP Photo/Gerald Herbert)

  • President Barack Obama and first lady Michelle Obama kiss during the Commander-In-Chief Inaugural Ball at the Washington Convention Center during the 57th Presidential Inauguration on Monday, Jan. 21, 2013 in Washington. (AP Photo/ Evan Vucci)

  • President Barack Obama kisses first lady Michelle Obama during their dance at the Commander-in-Chief Inaugural Ball at the Washington Convention Center during the 57th Presidential Inauguration on Monday, Jan. 21, 2013, in Washington. (AP Photo/Jacquelyn Martin)

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