So I fear the Batfamily meets the Justice League brain rot has gotten to me so here are some little ideas I think could be fun,
(Ps in this AU everyone identity’s are know except for Batman, so no one knows of his huge clan of super hero’s, in addition to this these take place some time after Nightwing would have been recruited as his own hero, and no one knows the relationship between the two)
1: while playing truth or dare, (or some type of silly game) Nightwing gets dared to hug Batman. (The bat is broody and terrifying and no one knows anything about him.) So to the bewilderment of the others (Wally, Hal, etc) Nightwing proceeds to walk over, get the bats attention. He then takes a few steps back. The others misread this as a sight of giving up, but all of a sudden, Nightwing grabs onto a pipe on the ceiling and starts swinging back and forth before yelling, “catch!!” To Batman. The Batman. Batman catches him. Then Nightwing hugs him. Batman hugs back. With that Nightwing skips away, but not without a jaunty little wave, grabbing Wally and skipping out.
1.5: one of the league members tries to retell this event, no ones believes them. Tried to check cameras, only to find out the whole day had been erased, mental breakdown ensues.
2: at a league party or event, (that’s Batman’s at) Nightwing strolls in, sees Batman’s plate, grabs a brownie, and eats it. Then seemingly deeming it worth his time, takes it, then walking a few steps away, turning around and just grabbing Batman’s whole plate. Batman lets him. He skips off, but not before giving Batman a boop on his nose. The others stare, slack jawed. (Hal and Barry get in an argument later where Hal tries to explain that his last speedster trip must have messed with the timeline, because no way this is normal)
3: while prepping for a meeting, (some leaguers around) Batman and Nightwing walk in, Nightwing spots Batman’s seat (obviously open) and runs over and sits in it before Batman can get there. He then sticks his tongue out at him. Without a word, Batman walks over, grabs him by the back of his suit, and lifts him off the chair like he’s a small child, or a cat, and not a fully grown man. He then sets him down beside the chair, sits in it and shoos Nightwing away. Nightwing sticks his tongue out at him again, Batman does it back.
4: while fighting out on the field, and swamped with bad guys, Nightwing does a bird call, to which Batman responds, then proceeds to bend down and clasp his hands together. Nightwing runs over, jumps in his hands and is boosted up, flipping up and backwards grabbing a bad guy or three who were flying, destroys them, then lands back down with perfect grace, while Batman covered his back. Nightwing and Batman continue fighting like it’s no big deal.
5: Nightwings late to a meeting, everyone expects him to get obliterated. He then goes to explain that he was busy breaking up a fight between Little Wing and Baby bat. He says he was busy confiscating a gun, a katana, a second gun, a knife, a third gun and a shard of glass for some reason?? Batman takes this as a valid response, the rest are left to wonder who these people are, what there affiliation is with Batman and Nightwing, and why they have so many guns.