Imagine the sub shuffling along with a big, inflatable plug (lodged in it’s fundament) ato
Imagine the sub shuffling along with a big, inflatable plug (lodged in it’s fundament) atop a verticle bar fixed to it’s ankle-hobble bar whilst a well-tensioned chain links it’s ball-stretcher to the same hobble bar. It can decide to stretch or ‘consume’ more plug. -- source link