Can we take a minute to appreciate the surprising amount of anime lewds featured on Wikipedia? I've been glued to some air crash investigation channels on YouTube, so I decided to look up "VOR" to pass time at work. I wanted this...
But I also couldn't help but hover my mouse over this... ^_^"
And that's just for starters. Search up "Hentai", "Ecchi", "Fanservice", "Lolicon" ( But sadly not "Shotacon". ;-; ), and you'll be greeted with well-drawn examples of the topic at hand. The page for "Panchira" even has an infographic history of the panty-shot, by the powers!
They've also got covers for a handful of adult-oriented manga/animation. Shout-out to this one for having one of the best titles I've ever read. xD