She kisses him. It's a memory come to life and there's too much surprise to stamp any of it out. Cassian knows he should push her away, should pull her hand away, should berate her for doing this to him.

Instead he finds himself kissing her back, like no time at all has passed. He's taller now, and their bodies don't fit the same way, but his hands find her waist and readjust. They were always like that, always quick to figure each other out. His chest aches but he kisses her eagerly, unable to breakaway no matter how much is brain is screaming at him that it's a mistake.

Jyn always did have that effect on him. She stepped on his logic and smiled and apparently that hasn't gone away given how quickly he gave in, how quickly his hands cling to keep her close.