Stories that feature aliens.
Related: Androids; Goo People; Symbiotes.
Child of: Nonhuman.
Top Stories: “Empire”; “Among us”; “The Black Knights: Coming home”; “The shape of things to come”.
32 stories found. Total word count: 635,692.
- 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 14,547 views 4.0 stars (7 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 13,616 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 16,274 views 4.8 stars (12 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 10,278 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 13,313 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 2,481 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 6,091 views 4.7 stars (10 votes)
- Cockportal by BRK CockUp Cock Alien Hallow M 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 7,762 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 Witch 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 117,045 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 21,250 views 4.7 stars (21 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 6,988 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 4,322 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 3,844 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 3,597 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 9,468 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 15,955 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 11,032 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 11,324 views 4.3 stars (6 votes)
- The takeover by Flex Luthor HyCock MuscUp Musc Tf SizeUp Alien Mind An alien race employs sleek advertisement to turn Earth's top athletes into a horde of docile bodies in tubes, being pumped of their cum to create an army of supermasculine studs. Added Aug 2017 Updated Sep 2017 3 parts 3,014 words 15,593 views 3.1 stars (8 votes)
- A taste of aedon by Josef Howard CockUp Cock 2Gay MuscUp Musc Plants Nonc Alien Space Adams and Evans survive the accidental explosion of their military vessel and land by life pod on the verdant class M planet Aedon. Added Mar 2004 3,383 words 12,995 views
- The tournament by AG Silver CockUp Balls Cock MuscUp Musc Alien A soldier enters a wrestling competition with an alien, whose touch reveals more than he ever expected. Added Aug 2019 Updated Nov 2019 4 parts 3,164 words 6,904 views 4.4 stars (15 votes)
- The training program by BRK AlwHard CockUp Self HyCum Addict Mental 2Gay MuscUp Musc NoShirts Libido Handsomer Grad Tf Taller PSD SizeUp Hairier Dom Nonc Slave Alien Recruited to take part in an intense and highly selective three-week LEO training program, Texas Ranger Dusty thinks he and his fellow trainees are in for a lot of hard work and conditioning. What he doesn’t know is what exactly these elite law-enforcement men are being trained for. Added Aug 2021 5 parts 8,850 words 5,969 views 4.6 stars (5 votes)