I know it's not explicitly SAID in this, but I see smegma on their dicks when their foreskins are pulled back. It won't turn me off, I'm just saying why I'm tagging 'smegma' on this. I really like this, and I hope it's still going on. It looks ongoing, yet the gallery name doesn't say that. Maybe want to change the title to reflect that.
Usually in Porn Comics(and/or Hentai Doujins whichever you prefer) those 3 things always change, it's just glaringly obvious here is all, usually you'd compose the scene a little better to hide when you change proportions