What I found was that access to liquids for hydration was very important. Small breaks to sit back and talk were great.
It really helped that we know each other really well and trust without exception.
Originally Posted by micktoz
Micktoz: great additional advice for anyone with a long session, especially pushing the limits. Have plenty of water and other liquids (juice, electrolytes), sexy fruit (strawberries, bananas, grapes) and snacks handy. Take breaks that are fun and sexy too so the mood doesn't ebb.
But the most important part is knowing each other really well and having trust. That way you both feel comfortable pushing boundaries. Sometimes spontaneity can be wonderful. The other day, I was flogging my ATF with her head at the edge of the bed. I moved over and facefucked her while continuing the flogging, even timing my thrusts with the flogging. Was damn hot for both of us and something neither of us had never done. It was hard to concentrate on the flogging, but we're going to definitely try that again and see if we can get it to perfection.