Martha's mind is conquered by the Doctor

Martha’s accelerated the speed of her motorcycle, Mickey’s voice still echoing in her ear—alien emergency. He sounded serious, rushed, and calm. Too calm, actually.

She races through London, heart pounding as she realizes the frequencies she had accessed were radio silent on the topic of alien threats or emergencies. There was no sign of frantic activity from U.N.I.T. backup that she could tell. There were no Torchwood alerts either. And yet, Mickey assured her that it was him and that he was back, even if he had grown a new face.

The Doctor.

It had been a long time since they last crossed paths. Nearly a year since he abruptly showed up out of nowhere in the middle of her struggle against an alien Sontaran soldier. She knew he had saved their lives at the time, but the deathly serious look on his face as he looked at them like he was trying to commit their faces to perpetual memory had made her freeze while fearing something was terribly wrong, and then, just like that, he walked away without saying a word.

Moreover, before even that, the last time they actually spoke to each other, they were way too preoccupied since the Time War Era Dalek Empire had managed to steal planet Earth along with 26 other planets and taken them across the stars to another galaxy in order to use the planets as crucial gears in the mechanism of their creation-shattering Reality Bomb. She did her best to assist him then, like in the old days when she used to travel with him across time and space. And after a lot of combined effort from herself and other former and current companions of his, they were finally able to help him stop the omni-genocidal plans of the Daleks, save the massive threat to their universe, and assisted him in using the TARDIS to take the Earth back to its rightful cosmic place in the Sol system.

Her chest tightens with old memories, worn and packed away—love unreturned, lessons learned, adventures survived, and strength forged in heartbreak and experience. She had moved on. Married Mickey. Let the past settle like dust. And Mickey did use the words "alien emergency," so she doubted this was merely a social call.

And yet…as she reaches the door to her flat and sees the faint light leaking from beneath it, her breath catches with nostalgia and excitement.

She opens the door—and there he is. The Doctor. Newer, younger-looking. Sharper features, stranger eyes. Wearing a bowtie, of all things, and with a far longer and sharper-looking jaw jutting out of his chin.

Next to him stood what she assumed was his newest companion, a beautiful redheaded woman with an easy confidence, long legs, and amusement in her stance

“Martha Jones,” the Doctor says, voice both nostalgic and new. “Come in. We need to talk.”

Martha walks in slowly, tension in her muscles. “Good to see you again, Doctor, but what’s going on? Mickey said it was urgent.”

The Doctor smiles, calm, hands folded. “It is—but not the way you’re thinking.”

She looked around and frowned when she didn't see her husband. “Where is he?”

“Gone. Peacefully. You’ll be hearing from the divorce lawyers in due time.”

Her heart skips a bit. “Wait, what?! What are you talking about?”

“I gave him over one hundred seventy-five million euros and a fresh start,” the Doctor says evenly. “He’s happy. I’ve ensured it.”

Martha stared at him, her eyes wide. “You’re not serious—”

“I am. Because I need you, Martha. I need you, specifically. For something bigger than you can imagine.”

She backs a step, trying to catch up to his words. Amy watches quietly from the side, eyes gleaming, looking far too excited.

“Need me for what, Doctor?” She finally asked, her tone wary.

“To rebuild Gallifrey,” he says. “In the wombs of the companions I trust most. I want you to be one of them. A Mother of Gallifrey.”

Silence floods the room while Martha tries and fails to process what the Doctor just told her, feeling that she must have heard him wrong. But he just looked at her intently and earnestly, leading her to shake her head in disbelief

“You’ve officially lost it. This is insane. Do you hear yourself...?”

The Doctor steps forward and speaks one commanding word: “Listen.”

Martha gasps as she realizes that the word was packed with an extremely powerful gut punch of psychic energy. Her training with the Unified Intelligence Task **** to detect and resist psychic assaults from alien species allowed her to recognize what he was doing in an instant, but none of her training had prepared her for such a mighty psychic attack. Compared to what she was used to preparing against for contingency measures, those felt like slow arrow shots, while this felt like a supersonic ballistic missile penetrating her mind and demanding she listen to what the Doctor had to say.

And the whole time, she got chills down her spine as she realized in shock that the proverbial missile was preparing to explode, and when it did, she was suddenly sure that a psychic nuke would detonate inside her innermost thoughts, and her mind would be forever altered.

"Martha...Jones," the Doctor continued after the word had struck her like an unavoidable asteroid strike.

His voice was soothing yet firm, wrapping around her mind like a warm, velvet-lined straitjacket. "I know this is a lot to take in, that I am asking a lot of you...but you have always been strong, brave, and capable. Not to mention loyal. You have demonstrated incredible resilience in the face of adversity many times, and that's why I have chosen you to be one of the Mothers of New Gallifrey. To carry my children, to help revive my species. But I promise I will make sure you enjoy your new life a lot more than you did your previous one, so please, just let go of your fear, outrage, and hesitation and realize that you really want to be my devoted, eager lover for the rest of your life," He commanded, as Martha heard them with more than just her ears. "You want me to impregnate you, and so you will want to join my new harem I am creating for the purpose of reviving my species. And you will trust me completely from now on, even if I tell you I am going to mind control you again in the future, because you know I will have a good reason if I do. And you will thank me for it, Martha, because you know that you owe me your life many times over and decide that this is a great way to repay me. Agreed?” The Doctor finished, his voice soft but forceful, each word fuel for the metaphorical psychic nuclear explosion that was raging inside her mind.

Martha’s mouth was gaping, her jaw tense and her mouth paralyzed in a frozen scream, feeling that her head throbbed as if a billion tiny hammers were pounding away at her cerebral cortex, rewiring her synapses, implanting new desires, new wants, and new needs. She tried to resist, tried to cling to her old life, to her marriage, to her independence. But it was like fighting a massive hurricane with her bare hands. The psychic deluge was just too overwhelming and it threatened to rapidly consume her, drowning her in a sea created by the Doctor's will.

Out of the corner of her eyes, Martha just barely noticed that the redheaded woman who had yet to introduce herself was watching her with wide, excited eyes, as if she was thoroughly enjoying her facial expressions while the Doctor's irresistible wave of mind control flooded her mind, but she soon closed her eyes shut as if trying to blind herself to the psychic influence.

Her efforts didn't even slow it down, nor did focusing on the lessons of her psychic-resistance training, and as she slowly started to sink into the warm, bottomless ocean of his psychic domination, Martha realized that she had already lost the battle. Her old life, her old loyalties, her old fears, her old love for Mickey—everything started to transform into a different form as her priorities were rearranged.

Soon, she closed her gaping jaw before breathing heavily as she realized the absolute truth. She was no longer just Martha Jones, the human doctor, the Time Lord's former companion, the experienced U. N. I. T. field agent. She was also the newest member of her beloved Doctor's harem, his loyally eager lover, a willing broodmare to his Time Lord babies, and more.

And she was utterly devoted to the Doctor and all his goals. Now and forever.

Her body started to respond to the new desires and needs implanted in her mind. Her nipples hardened behind her bra, and inside her panties her pussy started to throb; her breathing became ragged as she stared at the Doctor that she now loved and desired so much more than ever before. Her eyes fluttered closed, her head lolled back, and a soft moan escaped her lips.

When she finally opened them again, they were filled with a lust-filled haze as she looked at the Doctor. A slow, seductive smile spread across her face, her tongue darting out to lick her lips.

"I understand now," she whispered, her voice thick with desire and conviction. "I want this, Doctor. I want to be yours forever. I want to feel your cock inside me, filling me with your alien seed."

The Doctor's eyes smiled widely as she said that. He took a step forward, his hands reaching out to cup her face. "Oh, Martha," he murmured, his voice barely more than a whisper. "I am so sorry for not returning your feelings back when you first travelled with me. That I unintentionally made you feel like a rebound companion, given how much I still missed Rose at that point of my life. But now, we can make up for lost time, wouldn't you say?"

And so he leaned down and snogged her. A slow, deep kiss that she melted into.

She moaned softly into his mouth, her hands reaching up to tangle in his hair, tearing up in joy as her old dreams came true at long last.

And in the distance, she heard the excited cheers of what had to be the redheaded woman.