cum_between_breasts -> cum_on_breasts
I ended up accidentally using cum_between_breasts before I realized it was unused, as it popped up in DanbooruUp. Presumably because at least someone had used it before, so it might be worth aliasing. Unless we feel the need to differentiate... though in that case a tag or pool for the related and specific type of paizuri might be better.
Updated by jxh2154