Stories that feature aliens.
Related: Androids; Goo People; Symbiotes.
Child of: Nonhuman.
Top Stories: “Empire”; “Among us”; “The shape of things to come”; “The Black Knights: Coming home”; “A whole new world”; “Pan-Galactic Human Fan Club”.
Recently Updated: “Pan-Galactic Human Fan Club”; “A whole new world”; “Vision space”; “Building a species”.
30 stories found. Total word count: 623,459.
- B.D.E. by Ziel CockUp Balls Cock HyCock HyCum Alien Space Future While orbiting a nearby planet, the ship detects an unusual energy signature. Parker and Quill are sent down to investigate, but things take a turn for the smutty when Parker’s suit is compromised. Added Aug 2018 3,531 words 13,922 views 3.8 stars (6 votes)
- Beyond contact by BRK XAbs XCock XArms XLeg XLimb 3Legs Rep Alien Space M/M M/M/M/... The trick to contacting aliens turns out to be sending only your mind. What you look like when you get there, though, isn’t quite what you’re used to. Added Jun 2003 3 parts 1,437 words 13,399 views 4.5 stars (6 votes)
- The Black Knights: Coming home by Meddler Incs CockUp Cock MuscUp Musc SizeUp Nonc Alien Symb Series When an ex-football player, now a local newspaper reporter, investigates The Black Knights, he gets more than he bargained for. Added Oct 2018 Updated Dec 2019 14 parts 23,531 words 15,675 views 4.8 stars (11 votes)
- Blink and it’s gone by Double-U MuscUp Musc Alien Mark is amazed he’s able to land a date with Connor, the unbelievably hot stud who approached him out of nowhere. But things get complicated when it turns out that Connor is not who he appears to be. Added Jun 2017 4 parts 8,569 words 9,951 views 4.6 stars (7 votes)
- Boytaurs from Outer Space! by BRK Cock XCock Btaur 4Legs XArms XLeg XLimb MuscUp Musc Inc Twins Alien Space M/M M/M/M M/M/M/... Sev, the commander of a Taurian survey mission, judges Earth suitable for cultivating an aggressive alien grain, but the danger to Earth’s ecosystem drives the idealistic Elek to rebel and flee with some valuable equipment. When a conflicted Kiyy chases him, they both encounter the strange inhabitants and discover that humans and Taurians find each other mutually captivating. Added Jun 2015 Updated Oct 2016 6 parts 13,050 words 13,089 views 4.4 stars (16 votes)
- Building a species by ArdanWolfe CockUp Mpreg Tf Nonc Alien When his homeworld faces annihilation, the sole survivor must find a new species capable of helping him preserve his race. Will he find what he needs on a tiny blue and green planet called Earth? Added Jun 2021 3 parts 2,562 words 1,893 views
- Burst by BRK CockUp Cock XCock Rep Mental HyStr MuscUp Musc NoShirts Str Handsomer Tf Taller SizeUp Alien Xmas In a sealed-off underground bunker, exposure to a tear in the fabric of space-time created by an illegal energy experiment is producing some interesting changes in the men trapped inside. And on top of everything else, it’s Christmas, and there’s no way they’ll ever see home again… Added Dec 2020 3 parts 11,494 words 5,301 views 4.7 stars (10 votes)
- Cockportal by BRK CockUp Cock Alien Hallow After a Halloween night ambulance ride ends up at the wrong hospital, Ronnie wakes up to find discover that his removed appendix isn’t the only thing that’s different about him. Added Nov 2018 4,660 words 7,444 views 4.0 stars (5 votes)
- Empire by LenZelig CockUp Cock Self 2Gay MuscUp Musc Taller SizeUp AgeDiff Beast Virgin Inc Bro Dad Twins Bi Het Nonc Slave Share Alien Space Tksg Mind Series A massive consolidation of the entire “Bill’s Education” universe, incorporating the previously separately posted “The Surfer”, “The Rescue”, “Spring Break”, “Pickup Trouble”, and “School Days”, “Empire” is the wide-ranging tale of easy transformation and even easier sex across all boundaries—friends, family members, genders, even species—as a fortunate crop of humans stumble into a wider universe of size, muscle, double-digit-length cocks and much, much more and discover the true meaning of shared, radical, uninhibited pleasure. Added Apr 2019 Updated May 2021 40 parts 365,561 words 114,844 views 4.8 stars (38 votes)
- The escape by hyperboi CockUp Cock HyCock Self 2Gay MuscUp Musc Inc Bro Twins Nonc Alien Sam and his brother find themselves taken in their sleep and trapped in some strange warehouse-like space, along with all the other teens in their community. Not only is there no way out, but something is happening to them all... Added Dec 2014 3,492 words 20,469 views 4.7 stars (20 votes)
- Means of escape by BRK Musc Str Alien Space Future Even for a randy space marine, life as a sex slave is not your first choice. But it looks like a distinct possibility after days of incarceration on the wrong planet. So when an offer of help arrives, it’s not something you ignore—even if the offer is telepathic and the help involves certain side-effects. Added May 2017 3,970 words 6,834 views
- MooMilk by Meddler Incs NipCum MusBr Musc Alien Fur The secrets of the newest workout supplement are about to be revealed. Added Aug 2020 1,760 words 3,653 views
- Muscle Mice From Mars by Mr. Mouse CockUp Balls Cock HyCum HyMusc MuscUp Musc SizeUp Viol Bond Alien Fur This is the story of a certain group of anthro alien biker mice and how they went from sexy, strong, and buff to hyper masculine and super strong with a little unintentional help from some old enemies. Added Oct 2019 2 parts 3,260 words 3,474 views
- The Scrotoman by TlaloctheWeirdo Balls Cock Musc Alien A university student’s life is about to change when his best friend, one of the university’s top athletes, stashes a human-like alien in his room. Added Apr 2021 Updated May 2021 2 parts 4,766 words 3,291 views
- Self-improvement by BRK CockUp Cock Rep MuscUp Alien Cam needs to get the cute guy he’s dosed with a little bit of experimental physio-changing serum to say what he wants in order for the transformations to start. He’s planning to keep things small and subtle, only Aiden isn’t as bashful as he appears, and he’s also just a tiny bit drunk. Added Sep 2018 4,175 words 9,227 views 4.9 stars (11 votes)
- The shape of things to come by Mykkhal Tf Alien Goo Space Shift Future The growing intimacy between Tom and Harry is disrupted by the revelation that Harry isn’t who—or what—he appears to be. Added Mar 2003 13 parts 31,913 words 15,712 views 4.6 stars (7 votes)
- Summer breeze by Dave CockUp Cock Tf Alien Swim hunk Mike is asked to employ his recently improved body and unstoppable libido in the service of intergalactic peace. Added Jun 2012 5,170 words 10,824 views 5.0 stars (6 votes)
- Super Hard Planet Champions by BRK Rep MuscUp Musc SizeUp Lycra Alien Space Logan and his buddies, along with the hot guy from the bowling alley Logan has a crush on, get pulled into a fight to save the universe from the evil Skorth. If only it didn’t involve wearing color-coded Lycra. Added Aug 2017 Updated May 2018 3 parts 18,764 words 10,932 views 4.3 stars (6 votes)