I dunno, might be weird for scenes to only refer to singular penises when you've got doubles
you could do what you did with the thicc mode, and have the player unlock it
that would be good if was an unlock able like thick mode so it would unlock new scenes and other kinks
or it could be like a new shop were you get body mods and you can get them in there
Honestly, it's just too much effort to add scenes for double penis that only a small portion of players will see :/
