In 2005, the name maxi mounds was entered in the guinness book of records as the owner of the largest artificial breasts in the world. According to measurements taken prior to the presentation of the guinness world records certificate, maxi has a 91. 28-year-old sheyla hershey of brazil is the proud owner of the worlds largest breasts -- with a staggering, life-threatening, and unfortunately-named bra size of 38kkk. Advertisement in may, abc news reported that hersheys breasts were 34 fff after eight surgeries and one gallon of silicone. Boubsbig boubslargest boubsthe largest breast in the whole world fancy a verylargest boubsworldworld boubs 2018world cupnewsproducer joey sz. Mr rezai says amanda holdens breast ratio is 6040 with a longer upper breast pole compared to the distance between nipple to breast fold. The largest breasts can be found in norway, iceland, the united kingdom and the usa, the smallest in central africa and southeast asia. There are also striking similarities with the bmi in terms of size distribution. Globally, a natural female breast has an average size somewhere between a large a and a smaller b in the us size system.