bestie and I traded ideas but
only had the most basic idea of what sex entailed and knew that a back massager on our balls felt good

found out that using some of that slime stuff that was a little dry so it wasn't pure liquid transferred the vibes so that it wasn't so point focussed, you could essentially be getting a full dick and ball vibe going on

took turns for a while but waiting got old fast and we had enough slime for both at once since it was spreading that vibe around pretty well
were essentially frotting in a loose vibrating fleshlight