>>96381491
I mean, yes, there is obviously plenty of sexual stuff involved when it comes to Slaanesh cults, but Slaanesh's sphere of influence is much more than just hehe sex and fixating on that kinda outs you as a coomer/teenager/somebody who knows the setting mostly from memes
>do any of the Horus Heresy books contain any risque sexual situations?
It's a series revolving around autistic supersoldiers whose sex drive got pretty much surgically removed, so no, there's not much of that, but there's some - Fulgrim (the novel) comes to mind, with the opera singer character beying quite openly sexually promiscuous and the opera scene turning into pretty much an orgy. And then a murder orgy when the marines can't handle or understand the rush of emotions and arousal they feel, so they unload them in the only way the know