He didn't want to move either. Although he was vaguely aware they probably looked totally ridiculous, in the middle of a pub. Still, they both needed contact at the moment, so he just wrapped his arm around the Master, and kept kissing.
Eventually one of them would need to step back, need space. That was just the way they worked, in his experience. But he suspected this Master might not have figured that out yet, so the Doctor would try to hold on until he was ready to let go.