President Biden was photographed playfully biting at least two babies dressed in Halloween costumes at the White House trick-or-treat event on Wednesday evening.

Both children were carried by their mothers to visit the 81-year-old commander-in-chief, who didn’t seem to mind the interaction.

One baby who was dressed as a chicken even giggled after Biden took a faux nibble of his or her leg. The president then engaged in some easy banter with the baby’s mother.