When the woman places one of her legs on her lover's shoulder, and stretches the other out, and then places the latter on his shoulder, and stretches out the other, and continues to do so alternately, it is called the "splitting of a bamboo".

• You control the motion by pulling into the siderails
• Communication is critical for the magic to happen
• Coordinate with your lover and as you switch shoulders you will be treated to a unique squeezing rotational friction