With Xlyph, he was doing emergency commissions and they were really cheap so I took advantage of it.
With iseleks, I really like the way they do bulges and I asked if they did commissions and they were insanely cheap so I took advantage of that too.
Also, I have asked other artists if they would do porn of real people and I've actually had people say no. So, the fact that both of these artists are cool with it is another reason why I go back to them. As for realism, I don't particularly care. I just want someone who draws big dicks. lol