An absolute 1st.... The Throbbing Hearts Vibrator, will it's shaft that expands and contracts.

Invention at its best. The New Throbbing Hearts Vibrator is the first of its kind to expand, contract and vibrate all at the same time - now that's orgasmic! 

The Throbbing Hearts Vibe actually swells as the shaft expands and contracts with your body's motion.  With 3 intensive speeds of throbbing action and a 7 function clitoral stimulator, your enjoyment is guaranteed to be electric.

This sensational vibe will likely move the earth for you. 

Insertable shaft 150mm