Over a decade.
):
Ah well I can understand the need/desire to short cut but I'd be careful when doing it with fanart/fanworks. If there is a remotely attractive girl (or even guy though to a much lesser degree) in a show an/or the show is just popular in general, you can expect the lewd to flow. That's Rule 34 for you. And it isn't even restricted to anime/Japanese media/Japanese artists (glares at large amounts of Steven Universe porn all over the internet as a recent example......) but as someone who has used the internet for more than one week, I assume I'm not telling you much you don't already know.