How'd you know?
The uke went to the seme’s house and saw a picture of the seme when he was little and said that he lived the same place as the seme when he was little, then the seme said “i know.”
Then the uke has a little flashback of him and the seme playing together as kids.
Oooooh that makes a lot of sense, thanks for explaining!
ヾ(☆▽☆)
No problem!
He also said "you never changed" which is indicator or foreshadowed they knew each other
The seme and uke were childhood friends