Joe Biden just can’t let Hillary Clinton go.

The Democratic presidential candidate met the vice president on a tarmac Monday in Scranton, Pennsylvania, just ahead of their first joint appearance of the 2016 presidential campaign.

Biden walked down the stairs from Air Force 2 and immediately embraced Clinton in an intimate hug. And then he kept holding her, even as Clinton stood up straight and put her hands on Biden’s biceps. But the hands-on VP just keep holding her by the waist.

Finally, after 15 seconds, Biden let go, and the two politicians walked to the VP’s awaiting limousine.

Clinton was joined on tarmac by Huma Abedin, the wife of Anthony Weiner, as well as John Podesta, the chair of her campaign.