Science of a mongering.
More than just a hole, a hardcore mongering brain is always seeking novelty.
Newer faces, different skin textures, right amount of flesh, varied body shapes, different body odors, some perverts even like it stinky.
Brain secrets maximum dopamine when he experiences new women bodies as per his specifications.
Nothing in this world compares to bathing in dopamine for years.
So guys keep diving until you submerge!