Adrien found out Marinette is Ladybug first. He's watching her in school when she trips and falls

Plagg: *whispers* "shouldn't you go help her?"

Adrien: *in trance* "so graceful..."

*pace palm*

Plagg: "seriously?"

Adrien: *realises* "oh yeah"

*flies across courtyard to help her up*

Marinette: *being Marinette* "oh t-thanks"

Adrien: "At your service m'lady" *bows*

Marinette: -

Adrien: *oh shit*

Plagg: "HAHAHHAHA"

Marinette: "wh-"

Plagg: *flies out* "hey Marinette, long time, no see"