Bitts, please don't be upset that I'm bouncing (ha) off this post. Because how you wrote it breaks my brain every time I read it. Especially since this is very close to one of my favorite fantasies. Though, this isn't entirely a fantasy, I have had experiences like this before, where I had to work it into someone very much nervous about the size and they ended up loving it.
Being with someone, and they know I'm well endowed. They're so worried about it, and while I promise to take my time and work things in slowly, I know that's not whats going to happen. I want to "just the tip" a magical cock into them. It grows little by little, every time I slide it out. And so every movement of my hips pushes it in just a little deeper without actually pushing my hips further in. I keep telling them it's only the tip, just the tip, until they start to get used to it, and ask for more. At which point I speed up the growth a little bit more, "don't worry it's not the whole thing, you're not even half way" over snd over again even though they swear its hitting deeper.
I assure them it's not, though really, whats inside them is already more than what I had when we first started. And when they're stretched beyond what they expected and the head has pushed so far in that they're starting to babble and lose themselves in the pleasure, I'll push the rest in, slowly. Just like before, little by little until our hips meet, and they stare up at me with shocked eyes.
They're amazed they took it all, and as they're about to say that, I start to pull out. And it just keeps coming, my hips pulling back far enough to make me unstable, before the head finally pops out. They let out a little gasp when it does, and a much louder one, when I slide the length of it against their clit and into full view. It's so much bigger than they were expecting, they're so confused, they can't believe it. But as their gaze flickers between my eyes and my cock, I let it go again, quicker this time.
Each time it throbs, it's visibly bigger. The veins bulging more, the head swelling and rising upward. They're dumbfounded, and when I again drag the length of it against their clit, they shudder with pleasure, but I can still see fear in their eyes as the head lines up with their dripping cunt and begins to slide back inside.
Their breathing is rapid and shallow, they squirm as I pin their hips to the supporting pillows. They can't escape, and soon, they don't want to. It slides in deeper than before, stretching them more than anything they even dreamed of. And by the time it's all the way in, they're asking for more. As much as I can give them.
Letting them be on top, and having them just sit there as it swells larger and larger and larger, pushing deeper without ever moving my hips.
Tying them up and dragging it along their clit until they're drooling mess and begging for it, and then forcing more orgasms out of them before finally relenting.
Torturing them by making it twitch and throb without ever getting bigger, just swelling and contracting in time with my heartbeats as they ask for it to grow.
Lifting them into a sort of full nelson, their legs pulled up to their chest and bouncing them on it.
Walking around the house having strapped them to my chest, cock buried deep, each dump jostling it against their walls.
Waking them up in the early hours of the morning with it pushing its way between their thighs, and putting my full weight on their back as I fuck them.
Cock warming on the couch, letting it shrink over the course of a few hours, and then suddenly growing double in size in a few seconds.
Taking pictures of how stretched they are around it and making them post it online. Their face blurred but everything else crystal clear.
Forcing them to press down on the bulge it makes as it slides deeper and deeper.