What are things to invent together with a friend?

Hey guys, I have this best friend. It's starting to get a bit awkward coz I started to like him and so I'm a but nervous around him and I don't want it to get awkward around him, and I have thought if a great idea. You know angus thongs and perfect snogging where those two best friends made a snogging scale together, I thought my best friend and I could do something like that something fun. I am a girl by the way in case you were thinking I was gay (: