I finally got a Blowjob picture done in DAZ. I've always found them kinda hard to do since opening the mouths too much can make the models fall into Uncanny Valley but I think this one turned out alright?
Looks as well as it can, yes.
I’ve noticed that dicks are just too big in most people’s renders. I don’t know if the fisheye lenses in porn did it, if the constant push to be a little bit bigger did it, some combination of the two or what, but a human’s erect penis should not be larger than their forearm. The blood needed to pump it up alone would make the person pass out.
When the dick in your render makes John Holmes look small, the problem isn’t that mouths don’t open wide enough.