I am thinking of making a short manga. It's not gonna be like regular manga where there's a whole storyline. It's basically going to be a compilation of little short stories between two lovers that don't go in any specific order.

Hoshi is a car mechanic who works for her landlord (who owns a car repair garage). She is a bit rough around the edges but despite her hard personality, she is quite the romantic. She has short hair that she dyes red.
Her girlfriend is Keiko, a university student. She is naturally optimistic and outgoing. She is a bit girly with medium-length brown hair.

I have a few ideas for these shorts already but I need more ideas. Can anyone think of cute/funny ideas between two lovers?

One idea is that Hoshi and Keiko are walking down the street after watching a movie and it starts to rain. Keiko takes out her umbrella but it doesn't open. Both are completely soaked and try to open up the umbrella and make a huge deal of it. Hoshi manages to get it open, but it stops raining right when she does. They laugh at the whole situation and they decide to walk home under the umbrella anyway.
Of course there is a little more to this idea, but that is the gist of it.