Sentient Pen15 from Outer Space

by Sabrina Cross

Liam had spent a lot of his childhood obsessed with the legends of the local mines. The abandoned tunnels underground had driven dozens of workers insane and young Liam was desperate to get to the bottom of it. But he found more than he bargained for down there.

Infected by parasitic space mold, Liam has held himself away from relationships for years. When things spark between him and the girl next door, he has no choice but to reveal the his manly appendage is also the bane of his existence.

Sentient Pen15 from Outer Space is a comedy romance. Yes, there will be an HEA. No, it is not meant to be taken seriously. This book is intended for readers 18+. A full set of content notes will be available in the book and on my website.

Genres: Smut, Humor, Erotica, Friends To Lovers

92 pages, Kindle Edition

Published March 15, 2025

Reviews

[Hannah B. · Rating 2 out of 5]

Okay so apparently I can get behind a sentient penis infected with a parasitic moldy alien, but I CANNOT with “baby” as a term of endearment used 10 times in this very short novella. Do I need to sort out my priorities? MAYBE.

[Miriam · Rating 4 out of 5]

This was a quick, spicy, and hilarious ride! I love that Sabrina’s stories can be so silly and ridiculous but also still have some emotional connection to them. She writes these crazy scenarios, and yet somehow makes me go “awww” 😂

If you’re looking for a super spicy and crazy sentient romance about childhood crushes and an alien space mold parasite, read this one!

☄️Sentient Pen15 (it’s in the title but like, actually)
☄️Aphrodisiac 💦
☄️Quick Spice
☄️Sassy Alien Parasite

Thank you so much to Sabrina Cross for sending me a copy for an honest review. 👽

[Michelle Lebron · Rating 4 out of 5]

You finally reunite with your teenage crush after years apart, and you work up the courage to kiss him once and for all. But just as you’re about to take things to the next level… his peen growls and talks to you. What do you do—pass out on the spot?

That’s exactly what happens to our FMC! Turns out, an alien fungus has bonded with her crush and is in control of a rather important part of him.

This story had me cracking up —the puns were absolutely on point. You’ll be in for plenty of surprises, and trust me, you won’t regret reading this one. A sentient peen? Why not!

[Kaylynn · Rating 4 out of 5]

I didn’t like the political mentions in this book. However, it had a very unique storyline and made me laugh. 4 stars

[Jhess · Rating 5 out of 5]

Stayed for the crazy alien peen POV.

[Kate Brasington · Rating 5 out of 5]

✨✨Sentient Pen15 from OuterSpace✨✨
(And some h1gh thoughts!)
⭐️⭐️⭐️⭐️⭐️
🌶️🌶️🌶️

The way that I went into this blind because all i saw on the cover was a huge purple ween and Sabrina Cross’ name and knew this was going to be a good time no matter what it was 🤣
I loved how witty the banter was between all three characters, Sibyl (FMC), Liam (MMC) and Bane (the other MMC/ appendage). When I first started this book I thought Bane was a human being but 3 chapters in caught on to the fact that Bane was a penis 🤣 I flipped out when I realized that! I also had so many silly questions about his and Liam’s dynamic.
If you love aliens, praise k1nks and funny banter you’re going to enjoy this book! I love all Sabrina Cross’ work but I think Sentient Pen15 from Outer Space might be my favorite!

✨✨Onto the h1gh thoughts✨✨
🌲So Liam gets Bane when he’s 13 which is when boys are going through puberty I cannot imagine how difficult that might have been because his body went through changes and then went through this MASSIVE CHANGE! How did he even handle that?
🌲 How long did it take Liam to notice his pee was sentient? Like was it a sudden transition and bane was like “hey what’s good buddy I’m your weiner now and I talk”? Or was it gradual??
🌲Bane definitely gives off some Venom vibes which is hilarious if you think about him sounding like venom and that voice coming from some dudes package
🌲Sibyl has such an innocent sounding name but she’s a fucking freak and I love that for her
🌲Sabrina Cross is really great at edging her characters and her audience because I was fucking begging for them all to finally fuck

[Ryn Emilee · Rating 5 out of 5]

Book Review Sentient Pen15 from Outer Space by Sabrina Cross

Miss Sabrina Cross, you really did that. You really sat down and thought, What if I took a romance, threw in some parasitic space mold, made a man’s junk sentient, and named it Bane? And you know what? I respect it.

This book had me howling. Not just a giggle. Not just a chuckle. No, I was full-on, breathless, slap-the-table, tears-in-my-eyes laughing. Because Bane? Oh, Bane TALKS. Not just in Liam’s mind—oh no, we’re on another level of unhinged here. If you’ve ever stared at a peen and thought, Hmm, that kinda looks like it has a mouth…—WELL, BUCKLE UP. Because this book is here to make sure you never unsee it again.

And just when I thought I had experienced all the madness this book could throw at me, BAM. A surprise moment that I cannot spoil, but let’s just say… if you own a purple B.O.B or looked at an octopus lately., you may never look at it the same way again. In fact, you may just burst out laughing mid-use. You’ve been warned.

Do I think everyone needs this book?
Hell. Freaking. Yes.
This was a wild 1-2 hour ride of absolute chaos, and I lived for it. Manic. Hysterical. Unhinged. And honestly? Kinda romantic in a WTF did I just read kind of way.

Five out of five sentient space mold peens—highly recommend.

[Brittney · Rating 4 out of 5]

I went into Sentient Pen15 from Outer Space expecting a short, ridiculous, laugh-out-loud kind of read—and while I definitely got that, what I wasn't expecting was a surprisingly well-thought-out backstory. I mean, how much explanation does a sentient Pen15 really need? Turns out, quite a bit. And somehow, it actually works.

Bane, the sentient Pen15—trust me, his name suits him—has a real origin with an actual purpose, including how he ended up on Earth and his unexpected connection to Liam. But Bane wasn’t the only standout here—Liam was a genuinely good guy, which made the chaos of Bane around him even funnier. Plus, the banter between Liam and Bane was a unique aspect that kept me giggling. And then there’s Sibyl, the one who got away, now back with a fierce determination to claim the neighbor boy she left behind. She’s relentless in her pursuit of Liam, but what really surprised me was how open-minded she turned out to be. She rolls with the very unexpected situation she walks into, and honestly? I kind of respected the hell out of her for it.

This was weird, quick, and a lot more engaging than I expected. It’s fun, it’s wild, and I can honestly say I haven’t come across another sentient romance like it.

Thank you, Sabrina Cross for the ARC.

[Virginie · Rating 5 out of 5]

Can someone please explain to me how a book can be funny, hot and totally improbable all at the same time? Sentient Pen15 from Outer Space is all of the above, and if I had known that earlier, I would definitely have read it sooner. To say I liked this novella would be an understatement! I loved it from start to finish!

I loved the way Sibyl takes matters into her own hands—literally and figuratively—and how she comes to accept Liam’s situation once the initial shock has worn off. After all, she wouldn’t reject her high school crush over that—OK, not so little—detail.

Liam is absolutely adorable yet hides an equally passionate side that is equally attractive. He’s had eyes only for Sibyl since they met as children. At 28, he’s still adamant that she’s the only one he’ll ever want to share his life with—OK, maybe not the only one, but she’ll have the merit of being his choice and not something he’s forced into.

Then there’s Bane, Liam’s ‘fucking bane of existence’ and, in my opinion, the most hilarious character in the book. Bane and Liam are forced to live together, which scared Sybil at first, though she seems happy with it in the end.

I’m now going to check out Sabrina Cross’s other books, as I’m very curious to read more of her work.

[MGF · Rating 4 out of 5]

✨ARC review✨

I got to say this novella took me by surprise🤭
This novella been really short I thought everything will go like super fast but it didn't felt that way, I really liked that.
I had a lot of fun with Liam and Bane quarrel all the time. Bane is like Liam's naughty conscious😂
Also Sibyls is one of us * chants one of us* she met Bane...pass out and then she was ready for some of that😉that's our girl.
This was really fun, good story line and the cherry on top spicy🔥

Rating: 4.5/5 ⭐
Spice:🌶️🌶️

[Miriam · Rating 5 out of 5]

Liam has an interesting problem- his “other head” can think for itself! And it has a one track mind. Liam has a crush on Sybil but doesn’t want to act on it cause of sentient 🍆, but Sybil also has a crush on him and she is ready to let him know! They start to get together when sentient 🍆 gets too excited and growls, blowing their cover. Liam explains the best he can how he ended up with a sentient 🍆 and they are able to make it work.
Good story, funny and a quick pace without leaving anything out.

[Escapist Romantic · Rating 5 out of 5]

OMG this was hilarious! Liam was awesome and I loved him, Bane was a funny, lovable, asshole, and the story was sweet, interesting, and unlike anything I’ve read previously. I loved it and I loved them. The FMC was likable, but not my favorite. Every time I was starting to really like her, she she’d disappoint me or give me the ick. Thank you so much for giving us virgin MMCs and an experienced FMC! And I love this subtle digs at the orange dictator. My highlights and comments haven’t uploaded but I’ll keep trying. And in the meantime, I’ll definitely be reading more by this author!

[Puppets & Paperbacks · Rating 5 out of 5]

Groan’s now NEEDS a broomstick!
If you wanted to know why witches carry brooms, well…this book will explain everything.

The story follows a college age witch who it seems no one has really trained. She’s assumed to be “bad” at magic. She get’s accepted to a witch-like college where she accidentally enchants a broom

So obviously this only works with enchanted brooms. Must find a witch now to enchant my broom.

This is F/F story as the broom identifies as female. Smut scenes are steamy and the broom really knows what it’s doing *smirk*

[Anastey · Rating 5 out of 5]

Thank you Sabrina Cross for sending me this review copy for free. I am leaving this review voluntarily.

This was everything I could have ever wanted from a title and blurb like that. It was bonkers in the absolute best brain candy way! If you love Venom, then you will have an amazing time reading this pile of symbiotic snarky goodness. It doesn't have to make sense, it has a talking wang. What could possibly be better than that?

[Jorja Harrison · Rating 5 out of 5]

atypical polyamory

I loved this far more than I should have. I started it as just something stupid to read and finished with a feeling of profound contentment. I laughed so hard I cried. It had political commentary that can only be described as glorious! Also, I want a synthetic Bane….So good!
Jorja Rae (independent author)

[Gigi_ljones · Rating 4 out of 5]

Uh....yeah

Four stars because why not. I had fun, I was entertained, the concept sparked questions to share with my book club. And aliens....who doesn't love aliens you know? (I'm a Yautja girlie at heart you know?) But yes I have questions. It was a quick read and I know you can tell by the title that there is spice.

[Vanessa · Rating 4 out of 5]

Liam and Sybil are childhood friends that end up reunited as next-door neighbors in adulthood. Unfortunately, Liam's c*ck is the Bane of his existence and it just growled at his crush. But, Sybil's kind of into it...

This was so wacky and fun! Sabrina Cross never fails to deliver a quirky story with emotional depth. I can't wait to read more of her stories!!

[Robyn G · Rating 5 out of 5]

I went in blind because I know i love this authors books and I was NOT disappointed!
Happily surprised and cracking up on how it turned out.
When I started reading it I was slightly confused until I realised and then when it clicked i was cracking up!
So so good I read it in one sitting!

[Darktwistybookworm · Rating 4 out of 5]

This was such a fun read!
There's just something about a growly, snarky, interfering pɛɛn with a one track mind that really tickled me!
It's incredibly creative, spicy, and had me laughing out loud! I really enjoyed it!

[Beth · Rating 5 out of 5]

When it comes to sentient object books, anything goes. And this one… whew!!! Quick read with all the spice and a great lineup of lovable characters! (Including the title character lol)

I received an advance copy of this book, all opinions are my own.

[Tiffany · Rating 5 out of 5]

Neighbors finally decide to act on their mutual crush, but his extra friend, the alien being inhabiting hi penis complicates things. She's willing to take the risk with him, and the three of them find their HEA.
So much heart in this one and so much heat. I loved every moment.

[Kat · Rating 4 out of 5]

This was unironically one of the funniest and most mind boggling stories I’ve read. Is it sentient object technically? Idk. But whatever it was was very entertaining and I enjoyed reading it and trying to figure out what was going on along with the main fem character lol

[Sophia Cristello · Rating 5 out of 5]

I surprisingly enjoyed this in all it's hilarity 🤣 although it was goofy, I like how there was still a thought process to the details of it, like there was still substance and world building to the story itself above the silly vibes from the main plot.

Over all enjoyable, light, and a funny read

[Angelic · Rating 4 out of 5]

This book was hilarious and absolutely adorable!! Such a smutty short read! 😂

Honestly curiosity had me reading this book! If you’re curious just read it, it was hard not to love Bane when he had one straight forward mindset. Plus the ending was adorable!

[Addie 🐦‍🔥✨🌈 · Rating 3 out of 5]

3.50⭐️ • 3.25🩷 • 3.75👥 • 3.50💥 • 3.25 🌎 • 4.00🌶️

I was cackling reading this. Hilarious premise and I loved that it started with Bane’s POV but the writing wasn’t my fave. Def still entertaining and only took like an hour to read.

[Eliera · Rating 5 out of 5]

“Years of reading alien romances had prepared me for this”..Absolutely hilarious, and honestly loved this. These are the types of reads that have you question your sanity but also can pull you from a slump. Well worth it.

[T || · Rating 2 out of 5]

a parasite infected human, whos parasite can control his d!ck 🤣 and talk.
it was a really quick halerious spicy read 🤣🤣🤣
I just... I cant with the title and the story.
I genuinely cannot work out a rate system for this one based on logic.
it was halerious, literally a talking d!ick 🤣🤣👽

[Katie Harder-schauer · Rating 2 out of 5]

This book sadly did not deliver the way I expected it to, and it was frankly more serious than I was expecting from sentient object erotica. I’ll have a more in depth review posted here after it goes live on my blog.

[Ana · Rating 3 out of 5]

For fun

This is utterly ridiculous, but that is the point. Do not expect a lot of logic or relationship building. There were more twists to this than I thought and I was surprised at to social commentary on the state of America. But this was a fun read that I got for free.

[Dennie · Rating 4 out of 5]

wtf did I just read!

This is my first book by the author but it was hilarious and also quite wholesome considering the subject matter. Is it completely unhinged, yes but it's also a very sweet love story.