Totally agree.
The other issue is if you both get spun then, normally, you both become bottoms.
That said, and in that condition, I have had the most fun with another bottom. It makes improvisational sex all the more exciting because you never know what you will do next.
As long as you both become totally uninhibited with each other, though still set personal limits (scat, deliberate pain, etc. or whatever your distastes are), you can play for days, and I have.
All those actions you listed above are GREAT to do and I would introduce some toys to play with and ones that can be shared in each other.
In essence, you will just be doing Lesbian play.
Love it!
Have a GREAT time!