I saw her a long time ago and it was pretty much like how Sheesh explained it.
Shower together with some touching etc. No oral or FS as set out from the get go.
On to the air mattress which has warmed gel applied to it. She climbs on your back and rubs herself all over you and tugs junior occasionally. You are flipping around like harbour seals frolicking in the ocean.
It was a fun experience IIRC without anything wrong. I am just more of a FS / BBBJ kind of guy so I wouldn't repeat. If she ever changed it up to have FS while in the shower, I would be there in a heartbeat. Sex, water and a hot partner are priceless.