ALT Bill Cipher holds a positive pregnancy test in disbelief. He says, "Again!? How???" There is a caption, "The Bill Cipher MPREG Zine 2!!! Interest Check OPEN"

ALT Bill Cipher looks frantic and holds a small triangle baby above his head. The baby is waving to the viewer. Text reads, "Hey you. Wanna buy my baby? Last chance $10."

ALT An ID card with "Visitor" scribbled out and "Contributor Spotlight" written on top. “Patient Visiting Maternity Area” is written on the bottom. Other writing on it reads, "Wolfie, Spot Artist, @spilosomaguts - Twitter & Bluesky, @equilaterrestial - Tumblr". There writing on paper behind it reading, "That triangle bastard getting pregnant was THE canon event of my life. Forever grateful to have been a part of this joke turned reality since the day it was conceived [heart emoticon]" The ID card has "The Bill Cipher MPREG Zine" Logo on it

ALT An ID card with "Visitor" scribbled out and "Contributor Spotlight" written on top. “Patient Visiting Maternity Area” is written on the bottom. Other writing on it reads, "Cas, Artist - Organiser, @paintedcrowsart - Twitter, @paintedcrows - Tumblr". There writing on paper behind it reading, "Shout out to Bill Cipher MPREG for quite possibly changing the course of my life. Or at least the last 9 months of it [heart emoticon]. Had a blast creating spot art and a comic for this zine! Not to mention working on organising it. Hope everyone enjoys our MPREG Creation! Remember: Together we can make that triangle pregnant!!" The ID card has "The Bill Cipher MPREG Zine" Logo on it

ALT An ID card with "Visitor" scribbled out and "Contributor Spotlight" written on top. “Patient Visiting Maternity Area” is written on the bottom. Other writing on it reads, "had_been_found, Artist - Organiser, @had_been_found - Twitter & Instagram". There writing on paper behind it reading, "can drive manual" The ID card has "The Bill Cipher MPREG Zine" Logo on it

ALT An ID card with "Visitor" scribbled out and "Contributor Spotlight" written on top. “Patient Visiting Maternity Area” is written on the bottom. Other writing on it reads, "Scout | TejasTom, Writer, TejasTom - AO3, @TejasTom69 - Twitter". There writing on paper behind it reading, "Scout was born and raised in Texas where everything's bigger, including the hyperfixation for mpreg. He loves reading, writing, and drawing. The Bill Cipher mpreg project has renewed his love for Gravity Falls along with a certain triangular demon. Scout believes in every interdimensional being's right to Billnancy or Billbortion." The ID card has "The Bill Cipher MPREG Zine" Logo on it

ALT A polaroid picture. On it, Bill holds a "Bill Cipher MPREG Zine" book as if it is a new born baby. He is looking down at it fondly. He is in a hospital bed. There is text, "The Bill Cipher MPREG Zine Out Now!"

ALT loose sheet of paper with "The Bill Cipher MPREG Zine" logo at the top. Large text at the bottom reads, "Baby's sneak peak." The main text on the page reads, "Just a little longer… Thought encryption wouldn't keep him away. Unicorn hair… that was another thing. But, he'd been waiting far too long for this, and with some help from a disgruntled Time Agent, plus an emotionally distraught 12-year-old girl, he was finally free! Free, free, free! A bright and shining new physical form for him, a brand new home and palace for him and his Henchmaniacs to party it up in, and— And… That wriggling thing inside of him was suddenly much more prominent than it had ever been and… shit, was that his water that just broke?"

ALT A pregnant Bill Cipher lays on the ground and says, "Uhh... it's for charity!", Stanford Pines is feeding him a cup of ice chips and looks disgruntled. A pair of eggs sit in a pink scarf. One has a Ford's 6 fingered hand symbol pattern on it, the other has Stan's fish symbol. A speech bubble asks, "So Bill, who's the father? [smiley face]." Bill replies, "..." Pyramid Steve sits looking sad, holding a bottle. He says, "I miss my wife, Dad. I miss her a lot." Bill's laying on the ground behind him with a Nintendo DS. He says, "That's great kid. Now would you can it for a bit, I'm about to clear the water temple." There is "The Bill Cipher MPREG Zine" Logo in the top left corner

ALT Keyhole holds out a bowl of doritos to a pregnant Bill Cipher. Keyhole says, "Earth snack for your cravings sir?." Bill looks shocked at the triangular snacks and thinks about a red, blue, and yellow triangle. A Bill and keyhole fan baby, it is a blue triangle with a keyhole shaped eye. Caption "Uber tragic bill hole baby" Below is Keyhole looking shell shocked with a helmet on. A blue triangle baby is dressed as Stanford, with his sweater and glasses. There is "The Bill Cipher MPREG Zine" Logo in the bottom right corner

ALT Comic of Bill Cipher and an adult human design of Pyramid Steve. Steve looks frustrated and asks, "Dad, what's the ONE thing I asked you NOT to do!?" Bill nervously says, "Give you siblings?" in the next panel Steve has his hands on his hips and asks, "And what did you do?" Bill looks away, rubbing his arm, and replies "Sigh ...Give you siblings..." There is "The Bill Cipher MPREG Zine" Logo in the bottom right corner

ALT An ensemble of Bill Cipher fan children. There are two human adult fan children looking disgruntled, their shape versions and drawn small next to them, also looking annoyed. Another triangle headed fan child looks at them and wonders what they'd look like as a human, with a thought bubble of what they might look like, caption "Woah human form" There are two adult fan children who are human and siblings, they look at each other smiling. A yellow triangle fan child in a cape, blushes embarrassed, as Bill holds up their baby photo album. There is "The Bill Cipher MPREG Zine" Logo in the top left corner

ALT An ensemble of Bill Cipher fan children. There is a crying billstan fan baby holding Grunkle Stan's battered fez, caption, "Firefly!!". Two faceless shapes, one green, the other white, sand hand in hand with the caption, "Brothers [heart] [Smiley face]" A baby Bill is to their right. A purple heart baby is floating, umbilical cord still attached. A triangle with a large bow waves at the viewer, caption, "Ada. Dream" A hexagon with a red and gold scarf around their body also waves at the viewer, caption, "Andy. Anna C Padilla." There is "The Bill Cipher MPREG Zine" Logo in the top middle of the image

ALT An ensemble of Bill Cipher fan babies. There is a spiky blue moon shape baby reaching out to a purple shape with lots of eyes. A blue triangle with a bow waves to the viewer, caption "Tessellation. Has a criminal record. Flug tm." A red shape with long brown hair holds a potted plant, caption "Astra. Maths and Dinos." Bill ruffles the hair of a humanoid child with orange hair and three eyes, caption "Cygni. Amaryllis." A red shape with a yellow cat eye has an arrow pointing to a humanoid child that looks similar, caption "same guy. Zommbee." There is "The Bill Cipher MPREG Zine" Logo in the top left corner

ALT An ensemble of Bill Cipher Fan babies. There is a purple triangle looking at the viewer and waving, caption "Ugly baby. Ate glue." A Blue rounded triangle is held up by Bill's disembodied arms, caption "Harmony my beloved!! Nat drem and Faith." A flat purple triangle lays down. There is a doodle of Bill and the axolotl next to it, caption "Zoe. Walking windbreaker 215." There is a Blue rectangle with a large iconic Pines family nose, caption "Willbur." A Yellow rectangle with glasses is floating and waves at a humanoid child with three eyes. Bill stands next to them shocked and says, "You humans grow up fast! an arrow is between the two babies and caption reads, "related. oldtimerclock" A baby Pyramid Steve looks down at them in confusion, caption "? megarhyssa." There is "The Bill Cipher MPREG Zine" Logo in the top left corner

ALT There is text, "The Bill Cipher MPREG Zine. Preorders OPEN. 10 USD" There are bullet points below, "Digital Zine PDF, Desktop & Phone Wallpapers, "Print at home instructions PDF" To the left is a baby memories book. There is a overlay reading, "PDF" and sticky notes reading, "interdimensional pregnancy is meant for older readers" and "Digital Zine" The center is burned off. A drawing of a triangular fetus, that looks like Bill Cipher, peeks through the burned area. The text "The Bill Cipher MPREG Zine" Is also visible. There is a laptop and phone screen mock-up with digital wallpapers of Bill Cipher MPREG themed drawings.

ALT A custom drawn version of the "guess we're doing circles now" meme. A large bill has a conveyor belt coming from his front. He says "oopsie" Another triangle, named "brett" by floating text and an arrow, stands next to the conveyor belt. He says, "I guess we doin babies now" There are various Bill Cipher fan babies on the conveyor belt. A cyan square has fallen off face first.

ALT Art of Bill Cipher looking round and pregnant. He is sitting on a blue chair in a hospital waiting room. There are posters and sticky notes in the background which spell a color code cipher. It reads, "His water just broke"

ALT An ID card with "Visitor" scribbled out and "Contributor Spotlight" written on top. “Patient Visiting Maternity Area” is written on the bottom. Other writing on it reads, "Chimerarobot, Artist, @Chime-art - Tumblr". There writing on paper behind it reading, "Hi, I'm Chime! I applied to this zine just for funsies, and then a few months later I found myself several pages deep into theorizing 2D vs 3D triangle pregnancy someone help me I'm making charts and graphs and punnett squares" The ID card has "The Bill Cipher MPREG Zine" Logo on it

ALT An ID card with "Visitor" scribbled out and "Contributor Spotlight" written on top. “Patient Visiting Maternity Area” is written on the bottom. Other writing on it reads, "Akubara, Comic Artist, @xx-akubara-xx - tumblr & tiktok & bluesky". There writing on paper behind it reading, "My fan-child Phill came to me as a delightful surprise when working on a different project. I'm not normally one for fan-children but one look at that yellow triangle and I knew I needed him to experience the wonders of motherhood. As a treat. He deserves it. " The ID card has "The Bill Cipher MPREG Zine" Logo on it

ALT An ID card with "Visitor" scribbled out and "Contributor Spotlight" written on top. “Patient Visiting Maternity Area” is written on the bottom. Other writing on it reads, "Sillyjellypuppy, Artist, Sillyjellypuppy - Twitter, Instagram, tiktok Evan Erath - facebook". There writing on paper behind it reading, "Co-creator of Claire,Cassio, and Aisha! My precious babies, the only good thing about Bill is the babies and that I can ship him with Stan. Qué tiene un camello con dos jorobas? EMBARAZO. JA. JA. JA." The ID card has "The Bill Cipher MPREG Zine" Logo on it

ALT An ID card with "Visitor" scribbled out and "Contributor Spotlight" written on top. “Patient Visiting Maternity Area” is written on the bottom. Other writing on it reads, "Megarhyssa, Comic Artist, @megarhyssa-sp - Tumblr & Bluesky @Megarhyssa - AO3". There writing on paper behind it reading, "Megarhyssa is a genus of giant ichneumonid wasps known as "stump stabbers," as they parasitize horntail sawfly larvae living underneath tree bark.Megarhyssa is also the name of a comic artist on this zine. When not drawing Bill Cipher stretched out like a bowling ball, she can often be found doing normal things, like [insert way more normal thing here]" The ID card has "The Bill Cipher MPREG Zine" Logo on it

ALT A grainy ultrasound picture of a baby Bill holding two lit sparklers. It has a pacifier in its mouth. There is a red pen on top of the photo and the text "Happy new year! see you soon Papa." The Bill Cipher MPREG Zine logo is in the corner.

ALT A polaroid of Christmas Baubles and a Bill Cipher themed Egg in the middle. It is pinned on a Cork board and the text "Merry Crisis" is overlaid.

ALT An ID card with "Visitor" scribbled out and "Contributor Spotlight" written on top. Writing on it reads as follows "Birb!, Artist, @TheeArtBir8, Patient Visiting Maternity Area". There writing on paper behind it reading, "Hello!! I'm Birb :)) this is my first zine! The best way to raise a child is to throw them in the woods and have them fly to the north. The strongest will enjoy the fruits of labor of the north. " The ID card has "The Bill Cipher MPREG Zine" Logo on it

ALT An ID card with "Visitor" scribbled out and "Contributor Spotlight" written on top. Writing on it reads as follows "Niq, Artist, @_matiniq - twitter/instagram @matiniq - bluesky, Patient Visiting Maternity Area". There writing on paper behind it reading, "The thought of Bill experiencing motherhood is extremely funny and horrifying for the child. That said, I am a sucker of drawing Bill all cuddly about some other living being other than himself. Much love and condolences to Liam and the other babies conjured in this project, may y'all grow up relatively normal compared to your mom." The ID card has "The Bill Cipher MPREG Zine" Logo on it

ALT An ID card with "Visitor" scribbled out and "Contributor Spotlight" written on top. Writing on it reads as follows "ZommBee, Artist, ZommZomm -AO3, Patient Visiting Maternity Area". There writing on paper behind it reading, "Your local artist, bone collector, raccoon creature and BILL BIRTH truther !!! Buy gold, collect deer teeth and give that triangle parental responsibility!" The ID card has "The Bill Cipher MPREG Zine" Logo on it

ALT An ID card with "Visitor" scribbled out and "Contributor Spotlight" written on top. Writing on it reads as follows "Pau Lion, Artist, @Itspau_gallery - Twitter & Instagram, Patient Visiting Maternity Area". There writing on paper behind it reading, "I love exploring how an interdimensional demon deals with parenthood (or the chaos it brings), but I also love a good bit of karma. I wanted to give Bill a taste of his own medicine regarding his history with twins, so it only felt right that his Mpreg journey would end with him having twins of his own. It’s the ultimate irony!" The ID card has "The Bill Cipher MPREG Zine" Logo on it