Mr. Pink Fluff
Apparently, there was already a vote on this years ago, and the answer will forever remain Eiken.
I have to take issue with this. Yes it was totally perverted the plot and animation sucked and fanservice was equal to that of a 5 star inn with breakfast in bed features. But the Whole thing was meant to be satirical so if took a step back to look at the bigger picture there was a definite sense of parody throughout the whole thing. I mean you can't take a guy riding a
VERY well endowed woman down a slide of vanilla pudding while they both wear swimsuits that couldn't cover a small child combined seriously. And if you try it is truly horrible. But look at it from a perverted comical view and you have a man riding a woman... with no clothes on... and both are covered in white stuff. I'm not saying it's a good anime but there are worse things in this world.