This will make even less sense if you haven't read the first part. This story seems to be doing that weird thing of writing itself (or at least demanding that I rewrite what it doesn't like), and apparently it wants to progress by way of scenes, rather than chapters, so parts are less stand-alone than you might wish.
*****
Holding me, his dick still semi-hard inside me, his voice rumbles, responding to my little laugh of incredulity, of wonder;
"I'm glad you're entertained, pretty, but your mouth has duties to perform. It's your job to clean me up, you see - to suck away all this stickiness."
And then, somehow, I was on my knees in front of him, confronted again with his gnarly cock, now shining with our mingled juices, his hands at my shoulders, then on my head.
I hesitated - I considered myself reasonably open-minded (how laughably innocent I was), but I hadn't ever fancied a cock in this slimy condition. Apparently though, my old self was no longer relevant. I was fucking my boss, my boss was overwhelmingly, casually, wonderfully masterful, and he wanted his cock in my mouth, so that was what was going to happen.
In any case, it seemed his hands were in charge, not my sensibilities. I could in theory have resisted, but instead I found myself opening my lips, however hesitantly, and leaning in, heart pattering faster again. A surge of eagerness in my lower belly made it clear that my sexuality approved of this, too.
And he pushed deep, straightaway. Not harsh, not fast, not rough, just irresistible, certain, knowing. My gag reflex kicked straight in and I squirmed at first, and then really bucked, but he didn't seem to get the message - just held my head, gentle but seemingly immovable, and pushed more, until the back of my head was against the desk, then carried right on pushing, in, in, in, until there was nothing more to take, until my nose was in his pubic hair, and then he was humping my face, slow, lazy, in control, pleasuring himself without any regard for me whatsoever. Teasing my nipples with his hands, alternately stroking softly and twisting hard, having fun, making me squeal through the muffle of his cock. Taking his rights.
God, but it was powerful; magical almost. I was somewhere else, somewhere unreal, unimaginable on the basis of my life so far, whimpering, writhing, trembling, helpless.
It was as if I had become a puppet; as if someone else controlled my body; even though it was desperate to reject this invader of my throat, demanding to breathe at all costs, it seemed that none of these reflexes were enough; some greater power kept me passive, stopped me fighting him off, kept my mouth soft and open for him, produced shocks of sexual desire that propagated out from my helplessly grinding sex, made me push my breasts out for him, spread my thighs lewdly, welcome him, want him, affirming his rights.
I was simultaneously powerless, racked by the reactions of my body to the impossibility, the transgression of being used like this, transfixed by desire and at the same time absolved, by virtue of his control, of all responsibility.
Impossible to retain any sense of self in the midst of all this: I stopped even trying.
Feebly, without any conscious intent, my arms lifted, pushing at him weakly - not fighting, more humbly offering evidence of my body's distress. He simply took both wrists in one huge hand and lifted them backwards over my head, trapping me, controlling me even more completely, making it explicit and domineering, pushing still deeper, making it clear; this was what he wanted, that he would take as he saw fit.
It was all done so calmly though, so casually and naturally that I could work up no resentment, and instead just managed, somehow; managed to gasp a little breath now and then, managed not to actually throw up, although my throat kept convulsing, managed to keep myself soft and open for him.
As he surged into me again and again I began to feel light-headed, and suddenly I was completely into it; really, fully into it, all of it - into being used like this, naked, on my knees, thighs spread, wrists restrained, helpless, dominated, being used like a warm wet hole, while he was still basically fully clothed - giving in to the intensity of it all.
I began to mould myself to him, pushing my head forwards now, welcoming him, accepting the physical panic of my body, absorbing it into the experience, setting it alongside the mounting sexual heat in my groin, merging the feelings as his cock rapidly stiffened again, feeling it getting much larger, much harder, deep inside my throat, going with the debauchery of it, helping him, enthralled at the way he had bring me to this point without the slightest crudity, how completely the sensation of being used was consuming me, overwhelming me.
It occurred to me then, in some still, quiet corner of my mind amidst the delirium, the helpless jerking and the desperate urgency of the tiny gasps of breath that were all that kept me conscious, that this sex would change for me forever - that anything less full-on than this would seem insipid from now on, but there was nothing I could do with this realisation, not a thing, and I gave myself over to him completely, softening my throat, letting my arms go limp, offering myself to him, actively swallowing, taking him in, tears in my eyes, total surrender in my heart.