there are three scenes that I know of, and one of them can change a bit - one is always available, one appears when you have foot stuff allowed in the sanctum, and for the last one you need to have breasts, and the scene changes a bit when you change their size (example - do it for the first time with small boobs, go to the body workshop in Transylvania, get large boobs, the Gin scene changes a bit the first time you pick the option; you can do this as many times as you want)