>>2711153Breaking the OP's rules a bit (this scene was in the anime, but I'm more familiar with the manga), but speaking of To Love-Ru Darkness, the scene where Nana is floating in a ethereal space and then gets covered in slime is permanently stuck in the back of my mind. Honestly, the scene, and Nana herself, hit a lot of my own preferences when it comes to ecchi. I kind of wish Yabuki used her a bit more (also wish she wasn't a stock tsundere with very little dere, but what can you do, flat chicks in ecchi are incapable of being nice I guess), but he made it pretty clear he liked his titties large.