TL/DR: No, there are officially no queer Space Marine Legions. There are also no heterosexual Space Marine legions.
You also have the Emperor’s Children.
Games Workshop used these originally-queer “transgressive” motifs for Slaanesh and the Emperor’s Children. Without ever explicitly saying so, EC background coyly alluded to them being sexually transgressive in a “you do the math” sort of way. They were very up front about the noise/music aspect, the sadism, masochism and narcotics aspect… but the “other forbidden pleasures” that the Emperor’s Children indulged in were always left unspoken with a wink and a shrug.
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Space Marine background lore is consistently clear that Astartes are asexual - they neither reproduce sexually, nor do they feel a sex drive. The lore is deliberately unclear whether they even still have a penis, and there is no reason to think that they retain their useless testes. In one of the novels, an Eldar refers to them as “geld warriors.”
…Games Workshop has laced subtle connections and allusions (some of them very dated and derogatory) to LGBTQ culture into Space Marine lore.
Back in the late 80’s when 40k was born, gay/queer/trans was still widely and popularly seen in most Western societies as “transgressive.” A quick and easy way for other scenes to clearly convey their own transgressiveness was to ape and caricature the fashion associated with certain gay and BDSM cultures: tight studded leathers, spikes, straps, chains, dog collars, that kind of thing. That is why punk and heavy metal used aspects of that look.
Hello,hope y'all doin good, i came to Quora to share my strange story , a very weird one , a story when luck smiled at me ,maybe u will enjoy it , let's begin,have fun...
A year ago ,I was a real porn addicted(btw I was 18) ,but never had sex before, I don't have a gf I didn't try to find one even ,always thinking to go to find a sex worker but then I just don't , everyday watching different bodies getting fucked and everyday enjoying.
One day, I was watching porn, a big ass lady with big boobs ,just after seeing her the image of my female cousin poped in my mind, (let's introduce her : she's 35 years old , very big ass , nice boobs ,not very big but nice,always wearing tight clothes , she's divorced ) and I thought of me fucking her ,I never had sexual desires for her but now I do days went by and when I met her I was so horny ,I couldn't stay with the family cz my penis was clearly erected , I realized this is my first time I get horny for one of my family ,it not illegal in my country.well to make a long story short( if u want details just text me I will tell u 😊),I decided to give her signs that I want to fuck her,finally I decided to have sex and with my cousin , I thought it is the best beggining for me, i started touching her when I came across her in a narrow place , make her feel my hard cock when we hug , I thought it will hard and I will be ashamed but no , I felt nothing and she said nothing , probably she thought it was by mistake,anyways, I decided then to talk with her about sex, waited for her to be alone in a room and talk with her, I confessed everything about me watching porn and addicted..etc,she said it's normal and u are growing up and u must have sex,well at that time I was like whaaat????? Well I didn't control myself and asked her for sex ( horny like I Ve never been before) she said that she will think Abt it ,2 weeka went by then she called me ,telling that she reserved a room in a hotel and we meet tonight ,we met,and bruuhh, sex is great , I mean, I had to find a pirstitue ,what I was waiting for to have such a feeling ????, I will never forget that night, I started kissing her she was kissing hard ,she misses sex so bad , she sucked my dick and swallowed my semen ,I felt I'm in a dream , then when fucked ,her ass was very big and the anus was open ,didn't struggle to get my hard cock inside it , she was obviously missing sex , she was shouting ,fuck me yh fuck me , I go fast after every word until I cum , we did that 3 times , then we went to her pussy , using condoms I fucked her so hard the moans were higher , everything was perfect ,in the end I asked her to lick her body , licked pussy ,ass, boobs,then she sucked my cock until we sleeped ,all I know that she was dirty ,well before even having sex with her I knew she is an open minded woman , and a woman that looks that she donesnt know anything , but she knows everything, but never expected having sex with her ,well she was horny and that helped...but no one of us regretted that sex ever..
We still have sex from time to time ,and I started having sex with sex workers , joining threesomes..etc
If u want pics of her text me.
Of course, you have the Dark Angels and Lion el’Johnson, named directly for the poem about hiding secret homosexuality by the poet Lionel Johnson. The First Legion is not secretly queer - their secret is The Fallen - but the original connection is what it is.
That said…
The process of turning a pre-pubescent boy into a Space Marine essentially turns them into biological war robots.
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