Not so long ago, you would have been hard-pressed to find a sex doll that was little more than a glorified, cheap rubber mannequin. They were hardly stimulating, much less pleasurable to most owners. Lately, however, things are starting to turn around. Recent years have seen the sex doll industry going through big, lasting changes. Most of these are due to large strides made lately when it comes to technological and design advancements. The latest and more advanced sex dolls are now robotic and…