Transmasc Mc - Tumblr Posts
This is the cutest thing ever omd

I know you're super busy but if you have the time, I wanted to request a Trans FtM MC with the brothers, mostly headcanons or cute shenanigans! Like asking the brothers helping MC recover from Top Surgery!!! Please it would make my year!! Thank you so much for reading!
Of course! It’s no problem and I’ll try to get all my asks done today!! :))
I really appreciate requests that give me different prompts because I myself as I have stated numerous times am a cis female and being introduced to other perspectives is really intriguing for me!!
Shenanigans with the brothers as a Temale to Male MC
Lucifer - Top Surgery.
- No doubt, going into surgery was a nerve wracking thing. He could only admire your bravery to do so.. and hold your hand in comfort as you walked in.
- You got registered in and sat in the doctor’s office, Lucifer was sat besides you rubbing your knuckles absentmindedly and pressing kisses against your cheek, reminding you that you’d do great.
- Post surgery - he could see your delight, your newfound comfort in being more masculine. He couldn’t help the tiny smile that dotted on his face at your happiness.
- He did notice the scars and was always careful when admiring you. In fact, he seemed to be even more enamoured. Those scars were a sign of strength. A sign of resilience.
‘’No matter what you look like, you’ll always remain mine. And that’s all that matters.’’
Mammon - A lower class demon misgendering you.
- You bet, he would be hella pissed.
- You both were walking through the town square, hand in hand when suddenly his demonic hearing picked up on snickering.
- Snickers about you and transphobic comments.
- How dare they make such comments about you? So he yelled out to them.
- If that didn’t work, he would literally square up on them. Give them an intimidating glare and go up to them with his hands on his hips, you behind him as he rambled off, insulting the inferior demon’s intelligence and what not.
- At one point, you had to literally hold him back as you could swear he was about to throw hands.
‘’Yea’, yea! Walk away, I dare ya! Stupid scum! Next time I see ya bastards hangin’ around, insulting MY ____, yer gonna regret it!’’
Leviathan - Cosplaying to combat body dysmorphia.
- Levi noticed just how sad you looked in the Ruri-chan cosplay.
- Sure, you agreed to cosplay with him but he still felt bad about taking up your time.. he should’ve known a stupid otaku like him would only take up your time.
- However, then the realisation dawned on him. Ruri-chan was a girl and you were trying to transition… oh. OH.
- To say he felt horrible was an understatement, and he immediately offered to switch cosplays. He reassured that you still looked masculine and that a gender-bend Ruri-chan wasn’t that bad of an idea.
‘’Y-You look so cool as Ruri-chan! Who cares if she’s a girl? C-Cosplaying is all about the fun of it!’’
Satan - Helping insecurity and deep rooted inferiority.
- Satan could see it. Even if you never stated it, that you held a lot of gender envy towards him and his brothers.
- He sympathised with you. Feeling like you were born in the wrong body was awful no doubt. And the fact that you would always feel inferior to ‘real’ men.
- But Satan always countered that - what defined a ‘real’ man? Sure, anatomy might be one answer, but the second was identity.
- Gender was nothing but a social custom. Dresses being feminine? An opinion. Suits being masculine? Also an opinion. Mindsets, emotions and thoughts didn’t have a set gender and Satan made sure to express that clearly, hell, you’ve seen his brothers haven’t you?
- His tone was logical and firm. Reassuring you that you were justified in being who you were and that labelling yourself as a man was okay.
‘’Don’t let other people drag you down to their levels of simplicity. I’ll love you no matter the form you take ____.’’
Asmodeus - Help diminish masculine stereotypes.
- He too noticed your gender envy. But the avatar of lust had a different way of dealing with it.
- Any time you two went out, he’d make sure to apply makeup, wear skirts, high heels - any ‘feminine’ thing you could think of just to show you there was no harm expressing yourself in a ‘girly’ manner even as a man.
- He also did it to place the attention on him. He didn’t care for the confused looks or admirers. He strutted like he owned the place and he wanted you to do the same.
‘’Confidence is a lifestyle darling. Once you begin living it, people will love you for the amazing man you are.’’
Beelzebub - To feel more masculine.
- Beel was a regular at the gym and his clubs, that was fact. And so, you could argue he was the most masculine with his chiseled form.
- When you came up to him and requested to attend the gym with him to build muscle, he was more than happy for you to accompany him. It did get a bit lonely going by himself at times.
- He helped you bulk on calories and encouraged what foods to eat and to avoid when building muscle.
- However, he also reassured you that you didn’t have to gain muscle to be a ‘man’ and that you were handsome enough as is.
‘’I know I don’t say it often but.. I love you how you are ____. Don’t feel the need to change for other people. But, I won’t stop you if you truly do it for yourself.’’
Belphegor - Comforting you after being deadnamed.
- Belphegor knew that you still had issues transitioning. It was normal - your whole life would change as people viewed you differently. But not him. In his heart, you were still the little human that got him to love the quirks of humanity again.
- However, after being woken up by your cries and hearing of what happened, he immediately came to reassure you that people like that were idiots and random nobodies. Why bother putting up with self-conscious fools who had nothing better to do than hate you for being happy?
- He pulled you close to his chest and snuggled into you, all the while asking about the low class demons that deadnamed you - you didn’t want to know what he would do to them.
‘’I’m telling you ____, don’t bother time with idiots.. they’re all mindless demons that somehow Lord Diavolo hasn’t eradicated yet.’’
NSFW prompt for ur consideration: The Demon Brothers' first time with a he/him transmasc!MC? You can pick which brothers you wanna do if u don't feel like writing all of em!

Ooooh what a fantastic request, and the first saucy prompt for the blog! This will presume the MC's had his top surgery but hasn't gotten around to the bottom surgery yet (either due to just time, money, or maybe has been looking around in the Devildom now instead of the human realm for a good way to do it, etc..)
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▸▸ You have him all riled up, either by accident or on purpose; either way it happened, you find his hunger to consume your love growing more and more needy until it comes time to remove the clothing barring his eyes from beholding you in your purest form. Your hesitation speaks volumes and his heels cool a bit to see what's bothering you, to make sure you're comfortable above all else.
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Lucifer already had a suspicion what this was about. He's read your file, gathered information on you; he knew you hadn't yet fully transitioned in the physical sense. So when your hand grabs his wrist lightly to stop him from undoing your shirt buttons, he immediately had a clue what was happening. He ceased what he was doing and leaned in to press a loving kiss to your forehead. "Are you concerned with what I will think? That it is your first time in such an intimate situation, with a body you have not quite come to terms with yet?" he'd mutter into your ear; though his tone had kept that silky smooth flit that made your spine shudder in anticipation, you could also hear the soft consideration behind it echoing his desire to make you more comfortable. You nod a little, and he just smirked in response at first.
"Do you really believe I would judge such a good boy on frivolous details?" His playful-yet-genuine words made your heart skip a beat. How did he always seem to know just what to say? "When I fell in love with you, I fell in love with you for more than just your body — it was your spirit, your heart that drew me in first. How it is presented to me matters very little beyond presenting me another way to please you." Another kiss of his graced your temple then, and you could feel how those lips were pulled in to a smile.
"I won't rush you, however. I know plenty of ways to bring you to your climax without moving a single inch of clothing aside... So tonight I'll treat you to something special, and if you're an obedient boy, I may even let you take in a rare sight indeed... Make sure I can hear you, or I might just punish you instead..."
Mammon initially gets a bit flustered when you grabbed for his hand — he thought maybe he'd been a bit too eager and crossed over into aggressiveness when he practically tore the bottom of your shirt out from under your belt. It takes a lot of stuttered words to convince him it's not anything to do with him, you're just nervous about how you look to him, on top of it being your first time ever having sex like this. There's a moment of short-circuiting from Mammon who just looks at you dumbfounded and you're nearly certain you already messed it up, until...
"Wha? My absolutely handsome human, lookin' bad? Tch! As if! Did'ja forget I got an eye for sexiness? That's right! And The Great Mammon ain't gonna let anythin' but the sexiest hang off his arm, so you best believe I'm madly in love with ya inside and out!" Him calling you handsome and sexy made sure it was your turn to get flustered, and he made sure to move and gentle straddle over your belly while you were still trying to process what he'd just said. The way he leaned back gave you an absolute mouthwatering eyeful of his toned body, and following it up showed his lopsided grin flashing his fangs down at you.
"No need 'ta rush, right? We'll just work ya up until you're feelin' ready, so instead of focusin' on any of that right now, why don't we see how good that sweet little mouth of yours is? You've always got a way with your words, so why don't'ya show me how you work that tongue in other ways if you want? Or I can just put on a private modelin' show for your eyes only — the thought of havin' my handsome boyfriend starin' me down like that's already gettin' me all sorts of riled up...
Leviathan ended up riled up after a fair bit of teasing him and once there was a mutual approval to let things get much more intimate past the touches and kisses he was the first one mostly out of his clothes. He only stopped when he realized you probably shouldn't just be left in yours too and had thought to try a slick move he watched in a hentai "educational anime series" by letting the tip of his tail slither up your back and around your neck, exploring down in to your shirt. He only got to the tips of your collarbone before you yelped for him to wait, and to say he looked guilty would be an understatement.
Poor Levi's immediately apologizing, swearing up and down he's just some filthy pervert of an otaku for ever trying to make the first move, and it takes a moment to calm him down and reassure the demon that it's not him at all, it's about the fact it's your first time and how you feel about your own body. Cue a few more moments before something dings in his head and he turns to go find a box that had been hidden in a rather inconspicuous spot — and from that box you see a flash of what looked like a very specific belt-like accessory, meant to hold a very familiar toy. His face is beet red as he seems unable to show the strap-on in full, but he seemed rather excited for the prospect.
"Th-That-- That's totally fine! I... I went out and watched some anime that h-had some protagonists like you, uhm... a-and I... I ord- ordered some stuff in advance... I figured y-y-you'd be worried... bu-but I promise I'll like it! I even tried it out on myself first! ... I-I mean, gah! I'm no-not f-f-forcing you to do this to me though okay?! I just... uhm... I'm really t-turned on by the thought of being topped by my hot human boyfriend, no matter how we do it!!"
Satan already had been teasing you with being relatively hands-off, utilizing his words and ghosting touches to get you hot and bothered; the way he muttered near your ear and let his breath wash down across your neck was but a small part of the myriad of ways he worked you up without ever letting a finger lay upon your body. You thought he'd be content with this alone but when you found one of his hands nearing your shirt you asked him to pause for a moment. You felt the need to tell him it was your first time, and on top of that you were unsure what he would think of how you looked. The way he paused to think made you nervous that you might have spoken out of line, but the smile he wore said differently.
"I've been alive for a couple centuries now and have seen a lot of things; if you think I will mind that your body does or doesn't have certain traits, then let me remind you..." You yelp softly when you feel his fingers trace the underside of your jaw, gasping when he finally graced the side of your neck with his lips. It was surprisingly sensual, thoughtful, careful; his free hand had grasped at your thigh only to then drag upwards with a light curl to his digits to pull the fabric of your clothing with them.
"I love you, Y/N. Everything about you, even as you are now, even as you will be in the future. Even if you don't trust yourself... trust in my words, in my touch, in my love. I could write a book a day for centuries filled to the brim with words of affection and adoration for you, and that still would only be but a droplet in the ocean that has welled up in my heart. You will always be the handsome human I am honored to call mine."
Asmodeus is no stranger to affairs of the body, both the good and the bad. Even when you got him all hot and bothered and ready to pounce on you, he could tell you were nervous by the way you hesitated at times. That cat-like grin remained on his lips as he crawled over top of you, letting his honey-pink eyes watch yours closely — but not to induce any magic upon you. You could tell he gazed at you sincerely, sweetly, wanting no question of his feelings to remain as he adjusted on his elbows to let his hands cradle the sides of your face with dancing fingertips.
"Oh hon, I know that look so well," he cooed quietly, his perfectly painted lips pulled in to his prettiest, most genuine smile. "That's the look of a young man who's still unsure of himself, isn't it? You know, I had that very same look once upon a time." Surely he must have seen the shock on your face because he'd follow that up with a giggling laugh. "Surprised? It's not just humans that often feel wrong in their bodies! We demons just have a much easier time making the changes we want. That's why I totally get it, my absolutely gorgeous boy. ♥ "
"I would never offer my body to just any old someone, Y/N~ That someone's gotta be drop-dead gorgeous, in a league anywhere near me, and I can confidently say that you're just that! In fact... You're the only person I've ever wanted to chase that wasn't just myself. If you were scared of how you looked... You've got my mark of approval — and I'll put that mark right in the most scandalous places, just for you...~ ♥♥♥ "
Beelzebub, despite being someone who seems unconcerned with most details not related to food, always takes your comfort very, very seriously. So seriously in fact that even when you were pulled up to straddle his chest as you both made out, he could see you weren't daring to put your full weight down and immediately stopped what you both were doing. He started to ask you if you were hurt, if he'd somehow pulled your legs too hard; it took a few tries of guessing before you finally blurted out that you're both a virgin and nervous about what he'd think of your appearance.
You can see the head empty stare he's got. "But... why does that matter?" He asked it sincerely, but realized he worded it poorly so he tried again. "What I mean is... would I be here showering you with love if I didn't like how you looked, or thought any less of you for this being your first time? If anything... I'm even more excited than ever. It's really special for humans to have their first time, right? So the fact you chose me... It makes me feel really good." Every inch of your body flushed hot as he picked you up effortlessly and sat you down on the bed next to him, his sweet eyes focused on you from below.
"But we don't have to rush at all. Like a gourmet dish, you've gotta go slow and savor it to really enjoy it. As much as I just want to drink up all your love, it wont taste the same if I sour it from pushing you. So we'll go at your own pace. Are you still up for anything? If you are, just let me know what you're comfortable with. If not, that's okay; we can go grab some dinner together instead."
Belphegor couldn't care less, but this meant that he didn't really look at you in any binary sense; even as you shared your transitional journey with him, he stayed supportive of you, unbothered by the changes because all he was looking at was you. Not a constantly-changing body, not some arbitrary label, but you as a whole. This couldn't be any more obvious than it was as you two lay intwined in bed, Belphegor leaving sloppy kisses down your jaw and neck, his hands bold as they groped at your posterior enough to arc in to his body. You only barely muttered out a plea to wait a moment, which he gave to hear you out. When you told him what bothered you, he threw you a quizzical look.
"Y/N, you're so caught up in what others think of you," he remarked earnestly as he trailed his finger up and down your spine. "But how do you feel? Not "what do I think Belphie wants to hear," but "what is my heart telling me?" Then listen to that voice." Belphegor always had a way of stunning you silent, and he could tell he had a profound effect on you. His lips would graze the outside of your ear, the trail left in its wake warm for a few moments before it felt like an icy chill across your hot skin.
"Besides. You shouldn't be thinking about anyone but me. You belong to me, and you know I'll always love you no matter what happens... Even if you changed your body little bits at a time every day for the rest of your life, all that would mean is I get new things to love about you. So come a little closer... Let me indulge you in how good I can make you feel, and let me show you just how much I've fallen for you..."

WHEW goodness, more suggestive than outright NSFW mostly, but I hope you like it regardless anon! As a confession, despite being transmasc myself I've never actually sat down and written proper transmasc smut, so that's part of why I was a bit shy on the more sexual nature of things. But still, I do hope I did alright! if you need me to go back and do another take please let me know! 💖