A/N: This idea came to me for another fic I had, but then, after some encouragement and idea-prompting from the amazing princessozmaofoz...I tweaked the scenario and came up with this. Sorry abut that. I have no idea how Robbie and James would behave when drunk, We only have the beginning of "And The Moonbeams Kiss The Sea" for reference. But in my head this was unbearably cute and so I had to get it down...Hope its not too terrible and that the drunkenness is at least a little believable.

James Hathaway was drunk. Not falling over and spewing up drunk, just pleasantly inebriated. He knew he was drunk because all the cars heading towards them so far seemed to have 3 headlights. His inspector was also drunk, James could tell by the way Lewis kept stumbling. He was a detective after all.

People kept walking towards them, unsurprising considering they were walking down a street. Some people smiled at them, some people gave them vaguely disgusted looks which James thought was unfair, they weren't that drunk. A thought struck him. A thought that he probably wouldn't have had and definitely wouldn't have voiced if he were sober.

"You know, all these people we're walking past sir, they probably think I'm your son." Lewis stopped and looked at him, incredulity swamping his face and for a second, James feared he'd overstepped the mark. However Lewis merely broke into a cheeky grin as he answered.

"Not with that hair they wouldn't lad." James flashed him an answering grin and they both staggered on towards the direction of home. James had been just about to comment on how the cars adorned with three headlights had suddenly managed to grow two more headlights each when he realised that Lewis was no longer walking next to him. He stopped and turned, wondering why the inspector had ceased to walk. Lewis had a sleepy, sweet smile on his face and it confused James greatly. Just before he managed to get a question out, Robbie spoke.

"I wouldn't mind you know Jim. If the people thought that I mean."

James could feel his face split into a wide smile and he felt warm inside. Although, he reasoned that could be the beer. Perhaps 'reasoned' was stretching it a little. His thoughts didn't really get that far. He just knew he was happy. He waited for Robbie to catch up and they stumbled on, James trying to subtly search passer-by's faces to see if they did think he was Robbie's son. He couldn't tell, but he decided that everyone was just being secretive tonight. He felt Robbie's hand on his elbow, guiding him sideways, he nearly fought against it, until he realised that Lewis was trying to stop him from walking into a bin. He grinned, wanting to thank Robbie for saving his life; bins were dangerous adversaries. Especially when they had glass in them, his own had attacked him more times than he could remember. Instead of the words he'd meant to say though, something entirely different came out.

"I don't think I'd mind either sir." He shrugged as Lewis smiled a fond, happy, decidedly drunken smile.

Might not have been what he meant to say, but it didn't make it any less true.

One thing he would mind however, him and Lewis both, would be the hangover he was going to have the next morning.