Alright so could track down any kind of answer for this question I had. What kind of effects do the different penis types have? Knot for just knotting content is a given, but does it actually have a mechanical feature tied to it? Barbs can cause damage and induce ovulation (in PCs with the right parts and with a specific perk active at least). But what about the horse and dragon penis types? What effects do they have that is special or is there anything special about any of the penis types from a mechanical rather than aesthetic function for PCs?
So far there is no information provided in game about this and the wiki doesn't exist. No one has brought it up in a public area either. So related to my question are 2 suggestions: add text on the effects of different penis types in the creation section and add mechanics related to the penis type.
For suggestion one it is just to clarify for people who aren't as familiar with how certain types do from a realistic view point. Particularly the dragon penis as it is 100% fictional. Certainly keep someone else from feeling frustrated not finding any answers for a very minor question like I did.
For suggestion two it would add new dynamics to the game and consequences of sex. Currently only knotting and scrapping exist from what I have seen and only barbs have a reason a vagina equipped PC with a singular perk might want to avoid (or track down) that penis type. This doesn't feel equal for penis equipped PCs as outside of an additional option to how you release there is nothing special for the type you pick.