I recently read this little fancomic between sigma and tracer:
https://www.reddit.com/r/Overwatch/comments/1c0jnmd/munchy_on_tumblr_just_opened_my_mind/
honestly? it would be a perfect interaction for these two characters who, even if they have experienced a space accident differently, have one thing in common: having seen something that is beyond the understanding of those who have not lived their experiences between the slipstream and the hole black.