Who with the stepmom? Nobody has been with the stepmom are you imagining things? If you're talking about Sam we havent seen him unclothed.
There's no evidence to suggest the guy in the shower is larger, it's impossible to tell render to render because it's AI.
Like I'm just saying people are assuming things but AI is inconsistent. These debates about dick size always get so silly, but even MORE SO in AI games. Unless it's explicitly said or blatantly obvious you just don't know.
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Like if I contrast this render against a render I'm looking at that I can't show right now, I dunno, mystery shower man looks pathetically small compared to what I'm looking at right now (Wish I could show).
But if I post the picture she sends to Eric instead, sure he might be bigger. It's really difficult to know when it's never specifically said.
There are essentially 3 dick size prompts you can use (outside of using none at all). Small, Large, Huge.
I'm fairly certain based on my own tests Eric uses "huge", same as these other guys. So unless it's specifically said they're all going to be larger or smaller than each other render to render.
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Like here he's got tons of cock to spare on the outside (no head visible). Clearly larger than the above.
It's AI my guys, Unless the game tells you something or it's like a very, VERY obvious difference don't assume a size gap. And any size gap that does exist will never be that much because... they're using the same prompts.
You can fix dick size with controlnets, but unless it's way off it's usually not worth the effort.