Authors note: Apologies in advance for this one as I struggled to find same sex couples kissing GIFs - I'm sure you guys can imagine it though :)
Nolan:
John kissed you at the end of your 3rd date when you dropped him home.
Harper:
You kissed Nyla at the end of your first date as a way of thanks.
Chen:
You and Chen kissed when you graduated as a Doctor, 3 weeks into dating.
Bradford:
You kissed Bradford one night when you were chilling at his house - he'd just been ranting about how his latest arrest had been let go; it was a week into dating.
Lopez:
You and Angela kissed on the 4th date after a long night of karaoke.
West:
You and Jackson kissed at the end of your first date on the Ferris wheel.