In panic and fear you decide o hop in the most likely safe area, his urethra, as the cock get erected you avoided being crushed or fall to your death, since being an Inch tall was... actually you don't want to get any chance.
now you were in a swelling, tigh place, it was dark, soft and humid place and it was getting more and more tigher as it swells and grow, getting erecte by your means to get his attention but now you were already fearin that you might get crushed to dead by Shining's Penis.
suddenly, you could heard some small grunts and moan from him, he like this? you struggled more trying to fight your way out but something more terrifying happen.
You were getting deeper, the muscles were contracting you getting yourself more deeper into his reproductive system, you struggle more violently now, trying to escape, how this happened, you ask.
only you hope now that he free you.
***
Shining Armor was having a particular, strange and arousing day while exploring his new palace in the Crystal Empire thanks to her sister Twilight and her Friends he found an peculiar insect but he ignore it believing it was a native harmless bug of the castle that janitors might care about later, but now he felt a series of itching around his testes, he did his best to ignore it since there was ponies looking at him, bowing to him, he don't like it actualy, it make him feel awkward, then a few itching to his sheath, like something was crawling in it, it was a odd, yet arousing sensation but the most strange yet was that something was... punching spots and touching the most sensitive part of his cock.
the most arousing part is that now something was crawling and struggling in his penis, like if something just went in, he don't know how but he like it, he luckily got a boner in a deserted part of the crystal palace, lucky him, his mind filled with lustful and thoughs and fantasies of Cadence, the princess of his life.
but there was the thing, something was getting into his penis but the though of it, make his cock jolt as well swallowing whatever was getting in, that's it, he needed to make a run to Cadence and now.
This was a very strange day... but he somehow like it.
***
Somehow, the cock take you more deeper, now you can heard shining heart beating an quite faster and the sound of some beating organs, somehow, you could see the some veins expanding like spider web around the cock's wall, pulsing with sincronization of his heart however you felt going more deeper, shifting the gravity you were now going up, then down.
You suddenly fall into an large organic chamber with liquid filled almost to brim, this place was...