#5. Swiss Ball Blitz
Sit on an inflated workout ball and have her sit on you while facing outward. (Think reverse cowgirl with some extra oomph.) This is due to the buoyancy you will get from the workout ball.
#6. The Back Breaking Boner
You’re lower half is on the bed and your upper half is on the floor. If she gets too jumpy you’re totally screwed — both your back and your dick.