The partner writes on a piece of paper some action that she wants you to perform (for example, wrinkle your shoulders or kiss your neck). You must use trial and error to guess what your partner wrote. You have five tries.
Play with your ass in front of your partner. Cum, shake and slap your bouncy buns as he looks at you excitedly.
Rub your ass against his dick.
Repeat the steps as in the image below.