Disney has a history of inserting sexual images in their cartoons.
Not just Disney. In Bugs Bunny’s early “three bears” (tell me more about my eyes) there appears to be a nudie picture or calendar on the wall.
Yeah, I don’t really recall much sexual images in Disney. Unless you count Lady and the Tramp, and even there, at least it was actual dogs engaging in it and it was a bit oblique. In fact, probably the only instance of this I can think of was maybe... Hunchback of Notre Dame (which quite frankly it being created was a mistake, and not just because it trashed Catholics even WITH the archbishop being a force of good, but also because the story was flat out inappropriate, and besides which it seemed to double down on inappropriate themes). I guess you could count The Bimbettes and the featherduster maid in Beauty and the Beast, though, especially when they looked a bit too much more beautiful than Belle did.
Ariel doesn’t count, considering that mermaids barely wear much clothes in their standard forms anyways, and besides, if anything, she’s actually a LOT more clothed even in mermaid form than usual art for mermaids (at least she’s wearing a top. If you look at standard art for mermaids, they’re baring all).