Hentai Game 
The artist known as Unfairr might be another for avid enthusiasts of raunchy artwork to follow as the individual possesses a rather unique style and prefers to draw a wide range of females making love, with the more graphic fetishes mostly be discarded in favor of vanilla situations.
Group sex, futanari, and impregnated women are about the most hardcore the artist tends to get with his works (with there being a couple animations too), perhaps serving as a perfect entry point for those who have just begun exploring the wide world of erotica:
