Jack growled into the kiss as his hands moved up to grip the Doctor's shoulders, sliding up his neck and into that tousled hair. He might have not kissed his Doctor, but that wasn't going to stop him from kissing this one. He pressed himself to the Doctor's lean body from knee to hip and fell deeper into that lush mouth, sucking on the tongue sliding against his. He definitely wasn't going to turn down a good snog from anybody, and the Doctor was one hell of a good kisser. He could taste what seemed to be pastry and something metallic, almost like electricity against his lips as he pulled back to breathe. "Nice to meet you, Doctor," he panted against the man's lips. "Suddenly I'm feeling quite jealous of the other me."