Aliens

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”.

25 stories found.

• Alien tormentors by James Fourlegs  Alien Cock XArm XCock XLeg XLimb MGrow Musc Rep  Unseen aliens juice the daylights out of their captives. Added Dec 2004 1,004 words 18,223 views 4.2 stars (5 votes)
• Among us by BRK  Alien Amputation Cock 2Anim Mind Musc Were  Nathan Yates is an ordinary boy who’s just graduated from high school and whose biggest concern in life in trying to figure out why the hottest guy in school is making passes at him. That is, until he’s thrown into a story he knows intimately from his favorite cult graphic novels, and becomes embroiled in a conflict that reaches across worlds and universes. Added May 2017 Updated Apr 2018 15 parts 52,459 words 18,080 views 4.3 stars (15 votes)

• B.D.E. by Ziel  Alien CGrow Balls Cock HyCock Cum Space  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 13,001 views 3.8 stars (5 votes)
• Beyond contact by BRK ⋆ Alien XAbs XArm XCock XLeg XLimb Rep Space 3Legs  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 12,842 views 4.6 stars (5 votes)
• The Black Knights: Coming home by Meddler Incs ⋆ Alien CGrow Cock MGrow Musc Nonc Grow 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 14,814 views 4.8 stars (11 votes)
• Blink and it’s gone by Double-U ⋆ Alien MGrow Musc  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 9,535 views 4.6 stars (7 votes)
• Boytaurs from Outer Space! by BRK  Alien Btaur 4Legs Cock XArm XCock XLeg XLimb MGrow Musc Space Twins  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 12,672 views 4.4 stars (15 votes)
• Burst by BRK ⋆ Alien NoShirts Xmas CGrow VGL Taller Cock Strong XCock MGrow Musc Mental Rep Grow Str Tf  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 3,958 views 4.7 stars (7 votes)

• Cockportal by BRK  Alien CGrow Hallow Cock  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 7,042 views

• Empire by LenZelig ⋆ AgeDiff Alien Beast Bi Bro CGrow Dad Virgin Taller Het Cock Mind MGrow Musc Nonc Self Slave Share Grow Space 2Gay Tksg Twins 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 38 parts 347,189 words 110,341 views 4.8 stars (38 votes)

• The landing by C.W.P.  Alien CGrow Cock Space  Mulling the pointlessness of his life on a vacation to Alaska, Chris is thrilled to encounter a pair of extremely well endowed aliens. Added Jul 2014 3 parts 7,254 words 10,617 views 4.4 stars (11 votes)

• Means of escape by BRK  Alien Musc Space Str  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 6,440 views
• MooMilk by Meddler Incs  Alien Fur MusBr Musc NipCum  The secrets of the newest workout supplement are about to be revealed. Added Aug 2020 1,760 words 2,689 views
• Muscle Mice From Mars by Mr. Mouse  Alien Fur CGrow Viol Balls Cock Cum HMusc MGrow Musc Bond Grow  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 2,892 views

• The night he came by Charles Westfall  Alien CGrow HyCock Hypno MGrow Musc  Thomas encounters alien visitors with equipment even bigger than his. Added Jul 2002 7,839 words 18,054 views

• Pollination by Absman420 ⋆ Alien CGrow Balls Cock MGrow Musc  The beginning of the most erotic alien invasion/muscle growth story… ever! Added Oct 2020 5,867 words 3,302 views 4.8 stars (11 votes)

• Self-improvement by BRK ⋆ Alien CGrow Cock MGrow Rep  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 8,801 views 4.9 stars (10 votes)
• The shape of things to come by Mykkhal  Alien Goo Shift Space Tf  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 15,359 views 4.4 stars (5 votes)
• Summer breeze by Dave ⋆ Alien CGrow Cock Tf  Swim hunk Mike is asked to employ his recently improved body and unstoppable libido in the service of intergalactic peace. Added Jun 2012 5,173 words 10,457 views 5.0 stars (6 votes)
• Super Hard Planet Champions by BRK  Alien Lycra MGrow Musc Rep Grow Space Twins  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 10,485 views 4.3 stars (6 votes)

• The takeover by Flex Luthor  Alien HyCock Mind MGrow Musc Grow Tf  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 14,373 views 3.0 stars (7 votes)
• The tournament by AG Silver  Alien CGrow Balls Cock MGrow Musc  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 6,135 views 4.4 stars (15 votes)

• An unexpected party by TheLegendOfSam  Alien LegWh Cent XFace Hallow Merg Merm XAbs XArm XCock XHead XLeg XLimb XTorso Rep Supn 3Legs  Fashion model Zeke gets more than he bargained for at the agency’s annual Halloween party, this year hosted at one of the summer homes of his new billionaire colleague, and finds a whole new meaning for the phrase “sexy costume”… Added Oct 2020 2 parts 4,699 words 1,388 views

• What happens on Venus by Malice Slashlover  Alien Det XCock Space  Garrett has a lot of questions about the Venusians he’s living with as an exchange student, but the one he most wants an answer to is — why do Venusian guys have three cocks? Added Jul 2014 2 parts 4,591 words 8,175 views
• A whole new world by MarcusB00  Alien CGrow Viol Cock Cum Strong MGrow Musc  Two siblings, looking for a profit, break into an abandoned facility for potential treasure. Along the way they accidentally open a portal and get sucked in, and one of them get woken up by young dude with muscle powers in a new world. Added Nov 2020 3,766 words 2,589 views