Fen's explicitly stated 'thing' is huge titty huge dick futa bimbos. Which, aight fair cop, that can be hot in controlled dosesFenoxo is basically responsible for the fact that all characters (old and new) get more oversexualised, hyperendowed, and have ridiculous body proportions.
To me it sounds like he cant get enough off it.
Except, you know how people around these parts like to poke fun at Adjatha's art? Where dicks in pants are just huge orb bulges and everyone looks like you hit the w i d e button in photoshop? Fen is the reason Adjatha is the main artist. He explicitly commissioned Adjatha so often they basically just got put on the team. That is his preferred proportions.
Again I wanna reiterate none of this is kinkshaming, the man's entitled to like what he likes. Just pointing out that TiTS (and CoC before it) have always mainlined the idea that a 10 inch dick is pretty small, etc, etc.