Flash felt like he could run round the world seventy times when Batman announced to the League that Robin would be sleeping over while he worked on a mission. Apparently Agent A (and who was that?) was away and he couldn't leave Robin alone for the duration of the mission (for obvious reasons - plus the kid was apparently likely to follow him into trouble). Which meant there was no one else he trusted to look after his ward - so the Watch Tower and supposedly responsible adult heroes it was. Why seventy times? He wasn't quite sure; it seemed like a better number than fifty but a hundred times was just plain tiring (trust him - he knew that from experience).
The downside to Robin coming to sleep over at the Watch Tower? So many new rules. Flash felt that if he breathed wrong he was likely to break a rule and end up on the bad side of the overprotective Bat (which was something no sane person wanted to do - and despite what some people would say, Flash was (reasonably) sane). He now understood what the others had said about Daddy Bats.
When Robin finally arrived the only ones in the Watch Tower were Flash, Martian Manhunter and Batman. The others were all on missions scattered across the world, which meant they didn't get to meet the now famous sidekick to the scary Gotham hero but it did mean they were safe from his wrath should anything go wrong.
Seeing as Martian Manhunter was busy (monitor duty, Flash was very glad it wasn't his turn - it was so boring doing very little for so long). This left Flash as the only option to babysit Robin so Batman had very, very, very reluctantly left him to look after his little baby Bird. Which Flash found a bit insulting; he actually had a nephew (who was a few years older than Robin) unlike Diana who had had very little experience with kids (and yes he had heard the story from Diana). He probably had the most kid-interaction practice in the League! Although, admittedly it had been a while since he had last seen his nephew - he should probably actually check up on the kid soon.
Robin was dressed in his traffic light uniform. A red vest, green gloves, a black cape with yellow inside and a matching yellow utility belt. He wore small little pixie boots and a black domino mask to protect his identity (not that that really mattered at the Watch Tower seeing as most of the main heroes knew who the pair were in their civilian lives already).
Flash thought the kid was absolutely adorable but would never admit it out loud to the pair. He had a feeling that the kid had likely picked up some of Batman's skills - he probably had a whole course on how to glare people into submission and Flash wasn't prepared to test it. He also figured that squealing about how adorable the kid was would mean Batman would reconsider letting him babysit (despite there being literally no other option).
He held a little Batman teddy bear in one hand (which Flash seemed to remember Wonder Woman and Black Canary mentioning during the whole babysitting/hide 'n' seek shenanigan) and his other (tiny!) hand was clutching the Caped Crusader's cape tightly like a safety blanket. That's something he would have to remember: don't play hide 'n' seek with a bat kid. He really didn't want to lose the kid in the Watch Tower, there were so many places to hide for a small child and so many dangerous rooms. Batman had a small backpack with Robin's stuff which he handed over to the Scarlett Speedster.
They waved goodbye to Batman as he left on his mission, but only after crouching down to give Robin a reassuring hug and whisper something in his ear (and wasn't that a weird site - who knew the Bat could act like a human?). Then they were alone and e had a six year old kid looking up at him expectantly. So, he thought he was safe letting the kid watch a movie, eat some sweets than put him to bed. After all it normally worked with his eight year old nephew Wally on the rare occasion they had been asked to babysit (though it really had been a few months which was abnormally long for them to go without seeing the kid - he really should mention something to Iris).
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How To Guess a Robin's Identity
FanfictionWhen Batman gives Robin (Dick Grayson) the Okay to tell the team his identity, he decides to let them try and guess it which results in a lot of trolling. Starts of with Robin meeting the Justice League, Speedy, Kid Flash and Aqualad then goes into...