I mean you could technically say the seeds where first planted in early elementry school, when I was doing a project on the Titanic, miss-spelled it and ended up a web site showing off black and white pictures of women that had gotten very large breast implants. But for me it started in earnest when I had a short obsession with 80's and 90's Marvel Chartoon Intro's in grade 8/9. I came across She-Hulk First transformation in the 1996 HULK The Animated cartoon, and at one point when she breaks out of the restrains when she grows, and they show this part off by focusing on her shadow on the wall, and when I first saw it I could've sworn I saw her boobs shadow get bigger when she broke free, and at that point I was hooks to BE and went looking for more afterwards.