Apparently, the GOG version is censored (no confirmation from GOG team that the GOG version is uncensored) So to patch the game to the uncensored, here's the official thread on Steam:
https://steamcommunity.com/app/339800/discussions/0/616198900649668367/

TLDR (copy-pasted):
Grab the patch file from this page: "http://www.teamhijack.com/huniepop/patch/uncensor.html". Put this file in the same location as the "HuniePop.exe" executable ("HuniePop.app" on Mac) and then start the game up.

EDIT: If the website is down/unavailable or you're afraid of virus, you can make the file yourself. In Windows, right-click somewhere on your folder and choose "New => Text Document" to create a new .txt file, remove the .txt extension and name the file "huniepop_uncensored_patch.game".

FOR MAC USERS: please see UX12's message below in this thread to get the patch working:
http://www.gog.com/forum/huniepop/patch_the_game_to_the_uncensored_version/post18

Does this game show completely visable and bare penetration?

Smooth...

Sorry, could not help it. XD Don't forget to ask Judas to pin this thread. :D

I had problems downloading the patch file, but thankfully it is possible (and very easy) to make your own patch file :)
https://www.youtube.com/watch?v=rTFQl-9P7HI

This game has no character animations so no, nothing like that. If you play this game for the sex scenes, this is not the game for you. This game is a very good and complex match-three game with great characters and surprisingly funny dialogue with a general dating theme and with some sexual images (and sounds) as flavoring. And while there are some full frontal nudity pics in sexual situations and while it is generally rather suggestive, it's not an Illusion game or anything remotely like it.

If and when uncensored, it is going to be an instabuy for me.

Ol' Bradley doesn't like restrictions on art; or freedom!

It's a North-American game so it's tame :o) Stickied ;)

Booooooo :P

Thanks for this.. I don't like censorships in any games.. So this is great. Had I not found this patch I would not have bought it..

How appropriate. =P

I do think it's kind of odd that GOG only sells the censored version but indirectly promotes the uncensored one via this thread now.

is there a patch for linux version?

There's no "patch", all game files are present as installed. You activate uncensored mode by putting a blank text file named "huniepop_uncensored_patch.game" in the game's directory. Downloading someone else's blank text file is just silly.

"Patch" is a handy short word in this case. Afterall, for some AAA games it's called DLC to just enable a boolean in the game :o)

Anyway, first post edited (and technically, it's not a text file recognized by Windows by default)

The workaround (wouldn't call it a patch since it's just creating an empty text file) seems to work. Although launching the game is somewhat sluggish (like a 10 sec delay at launch) after that.