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Optimus and Terrenus Prime by Litheaner
Fandoms: Transformers - All Media Types, Transformers, Transformers (Bay Movies)
11 Jan 2026
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Summary
Upon Sam stabbing Optimus with the Matrix of Leadership, Optimus is given the opportunity to go back before the Civil war that ravaged Cybertron, before he sent the Allspark off world and before Megatron was corrupted by the Fallen.
Before his bond with his brother broke.Sam is unfortunately along for the ride. The Allspark is a smug semi-sentient artifact that fuck up his life again and again and now it has decided the Sam would do very well on Cybertron... as a Cybertronian... as a sparkling.
- Language:
- English
- Words:
- 46,899
- Chapters:
- 20/?
- Comments:
- 589
- Kudos:
- 2,147
- Bookmarks:
- 715
- Hits:
- 43,641
Bookmarked by TFOPM
24 Jun 2026
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Perfectly Alien by SignatureDish
Fandoms: Transformers - All Media Types, Transformers (Bay Movies), Harry Potter - J. K. Rowling
14 May 2020
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Summary
Harry had only wanted to get the Hoover Dam tour over with, he didn't know what he did wrong. Why did that mysterious cube turn him into a robot? Had everyone known there was a huge laboratory underneath the dam? And what was going to happen to him now?
Poor Harry felt lost in his little Sector Seven cell. But it wasn't all bad, at least he had Lord Megatron there to protect him.- Language:
- English
- Words:
- 105,694
- Chapters:
- 12/?
- Collections:
- 5
- Comments:
- 289
- Kudos:
- 2,352
- Bookmarks:
- 1,058
- Hits:
- 57,005
Bookmarked by TFOPM
20 Jun 2026
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Summary
Dammit, Optimus was already appealing enough with his protective nature, soft blue eyes, and broad frame that was perfect for cuddling, but put a sparkling with him and all those attributes amplified and it was so unfair! How could Primus allow such an impossible mech to actually exist?
Or, Optimus is a good sire and Megatron has certain thoughts about that.
Bookmarked by TFOPM
06 Jun 2026
Bookmarker's Notes
A strange crossover I didn't know I needed. So, so cute and wholesome!!!
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What are the odds? by Someoneistired
Fandoms: Transformers - All Media Types, Transformers: Prime
16 Jul 2025
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Summary
Ever since Predaking showed his new-found ability to transform problems have been arising in the Nemesis. Megatron for his part doesn't understand why this is happening and is frankly irritated and tired. He is also actively ignoring what is happening to his own frame and refuses to get it check out, which will quite literally bite him in the aft.
Bookmarked by TFOPM
05 Jun 2026
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Sounds like a good idea... right? by O_Robin
Fandoms: Transformers - All Media Types, Transformers One (2024)
14 Mar 2026
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Summary
"If I knew that showing my face to you would calm and satisfy the ruthless lord Megatron," Optimus said with a rather smug smile that Megatron now had the permission to see "I would've done this sooner"
"Satisfy, mm? That's a strong word" Megatron muttered with a teasing tone. His clawed hands traveled towards Prime's jaw.
"Perhaps a poor choice of words on my end. Maybe satiate?" Optimus hummed.
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A cease-fire celebration had Megatron feeling rather nostalgic and so he seeks out a certain someone's company. Drunken encounter ensues.Bookmarked by TFOPM
30 May 2026
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Deep Sleeper by Spoon888 for nothing2mention
Fandoms: Transformers - All Media Types, Transformers: Prime
22 May 2026
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Summary
Primus forbid Megatron be conscious during his spiking!
Bookmarked by TFOPM
29 May 2026
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Not Like Other Seekers by Spoon888 for Sellychick
Fandoms: Transformers - All Media Types
23 May 2026
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Summary
Megatron wasn’t like the other seekers.
He had no trine.
Bookmarked by TFOPM
29 May 2026
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Summary
Megatron has lost the war. In a last ditch effort to save himself he claims the right to join the lost light on its quest to find the Knights of Cybertron. Washed up and tired, he now has to deal with being on a ship where his Co-Captain and high command hate him and everyone else treats him like a living plague. What a sad final show for the universe's greatest War Lord. Will Megatron’s end be nothing more then the flaccid blowing out of a candle before he's brought back to Cybertron and put to death or is there still more to life before his final judgement?
Series
- Part 1 of book club
- Language:
- English
- Words:
- 291,868
- Chapters:
- 47/?
- Collections:
- 1
- Comments:
- 660
- Kudos:
- 605
- Bookmarks:
- 82
- Hits:
- 21,027
Bookmarked by TFOPM
18 May 2026
Bookmarker's Notes
I LOVEEEEE THISSSSSSSSS, waiting for more bashful and messy Mag's and Meg's!!!!! Megatron is falling soooo HARD RIGHT NOW...AND HE DOESN'T EVEN KNOW IT!!!!!!!!!!
AND OH MY GOD, the character dynamics, the storytelling, everything is BEAUTIFUL ❤️❤️❤️ MORE KUDOS MORE KUDOS MORE KUDOOOSSSSS!!!!!!!!!!!
This needs everlasting love 😻😻😻😻
Oughhhh I am so looking forward to this fucking MASTERPIECE to continue
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Summary
tfp哥失忆勇闯报应号。
内含大量纯属个人喜好的泥塑攻内容，毒妇身穿情趣内衣夜袭小攻，骑到对方神志不清流清洗液。Series
- Part 7 of Rilkean Spark
Bookmarked by TFOPM
11 Feb 2026
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what's your price? by yiersang
Fandoms: Transformers - All Media Types, Transformers One (2024)
13 Nov 2024
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Summary
As a new Prime, Optimus is forced to learn the delicate art of negotiating with enemies.
Bookmarked by TFOPM
30 Jan 2026
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Summary
Based of episode 13 of Cyberworld where Optimus is sensually opening his legs for Megatron. Something animalistic stirs inside of Megatron, especially now that he can confront the Prime and Starscream on their previous relationship. Time to have a little break from the game and fuck Optimus until he's completely debauched.
Bookmarked by TFOPM
29 Jan 2026
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Loyal Decepticon Warriors by OccasionalStorytelling
Fandoms: Transformers Animated (2007), Transformers: Cyberverse, Transformers - All Media Types
25 Mar 2024
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Summary
Megatron gives a sticky, sexy reward to two of his most loyal soldiers, Clobber and Lugnut.
Bookmarked by TFOPM
24 Jan 2026
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Drugging Lord Megatron's Energon Lines by OccasionalStorytelling
Fandoms: Transformers - All Media Types
04 Jan 2024
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Summary
In Starscream's latest scheme to take over the Decepticons, he begins the long, slow process of forcibly addicting Megatron to a special mix of fool's energon.
Bookmarked by TFOPM
24 Jan 2026
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New Territory by MechaMinx (Dragonbite)
Fandoms: Transformers - All Media Types, Transformers Animated (2007)
14 Feb 2026
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Summary
Optimus works at a zoo. The kind that Autobots travel from the other side of Cybertron just to see. The kind of zoo that just received a creature the likes no typical Autobot citizen has seen before, and Optimus was about to get up close and personal with said creature. A little too close for comfort, to say the least. This is all new territory for him.
Series
- Part 1 of New Territory
Bookmarked by TFOPM
23 Jan 2026
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Breasting Boobily by IvyCorp
Fandoms: Transformers - All Media Types, Transformers: Earthspark (Cartoon)
02 Jul 2023
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Summary
set right after 'Accidental Accuracy'
The aftermath of the discovery of a surprise addition on Megatron's frame
That's it. It is what it ways on the tin.
Chapter 1: The first time (titties get played with)
Chapter 2: The picnic (titties get tied up)
Chapter 3: The experimentation (titties get milked)Series
- Part 2 of TFE Megs with titties
Bookmarked by TFOPM
22 Jan 2026
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Miko Nakadai's Guide to Gaslighting Cybertronians by Imgonnaproposetotheastonmartin for raiLeurTA
Fandoms: Transformers: Prime
18 Jan 2026
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Summary
You knew it wasn't a good idea.
But seeing a friendless and angry Miko Nakadai filled you with a primal rage at the unfairness of how the world treated teenage girls, deciding in the heat of the moment to take her under your wing.Somehow, this ended up with the girl convincing the Autobots that you and Megatron were her biological parents, and now you have to navigate co-parenting chaos incarnate as the vessel for Space Satan tries to convince you to quit your job and join his emo band.
Joy.
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Inspired by raileurta's Fake Dad Megs AU, with my own spin on it all (can you tell I like found families yet?)
- Language:
- English
- Words:
- 9,531
- Chapters:
- 9/?
- Collections:
- 1
- Comments:
- 164
- Kudos:
- 581
- Bookmarks:
- 164
- Hits:
- 8,200
Bookmarked by TFOPM
22 Jan 2026
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Snared by LinaValentina
Fandoms: Transformers - All Media Types, Transformers: Cyberworld (Cartoon)
02 Nov 2025
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Summary
A soft, distinct puff of steam escaped his intake. Then another. He cycled his vents fully open, a desperate, noisy gasp that did nothing to cool the fire within. Somewhere deep in his pelvic housing, a new, damning signal registered. A slickness.
"How exactly did you manage this?" Optimus asked, his voice calm, conversational.
Megatron couldn't answer. To speak was to risk a moan.
Bookmarked by TFOPM
17 Jan 2026
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Where Canaries Don't Sing by Santoku_Reaver, Storyteller_Bond
Fandoms: Transformers - All Media Types, Transformers Generation One
14 Jan 2026
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Summary
Optimus always imagined himself, perhaps selfishly, going out in a blaze of glory. Maybe surrounded by his friends and comrades, living just long enough to whisper a dramatic, lasting legacy before finally expiring to the great beyond.
He was not meant to die in a pitiful state like this with no one but the worst to witness it.
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In which Optimus Prime, last of the Primes, and Megatron of Tarn, Unkillable Scourge and Warlord, find themselves dying with no one but each other.
Series
- Part 2 of Daylight's Falling
Bookmarked by TFOPM
14 Jan 2026
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Summary
Squaring his shoulders, he continued to progress, turning in dark corridors after dark corridors. More than once, he was forced to go back on his steps and fumble in search of a new passage as his steps took him to deadends. He hadn’t felt the floor slopping at any part, but he was certain he was now much deeper than he had been at the beginning. He didn’t know how he knew for sure; perhaps the quality of the air going through his filters? Or the slight shift in temperature over his sensors? Unless it was how much more ‘rugged’ the ground felt under his pedes, as if it had been less travelled by. Unless it was…
His thoughts abruptly stopped as his optics widened.
A distance away in the dark, red optics and red lines were coming in his direction.
Series
- Part 26 of (Month of) May I Have Some Smut, Please?
Bookmarked by TFOPM
09 Jan 2026
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Summary
Knock Out doesn't mind people looking at his partner (most of the time) but they better keep their hands to themselves (unless they so happen to meet Knock Out's standards, in which case he'd reluctantly accept his lover straying).
But really, who would pass down a chance to do Optimus Prime of all mechs? Or watch Breakdown frag the hell out of him live?
Certainly not Knock Out, for sure.
Series
- Part 5 of (Month of) May I Have Some Smut, Please?
Bookmarked by TFOPM
09 Jan 2026