Woo! Thanks for the compliments! (And hi, anyone else here from Reddit! I didn’t know I was getting any traffic from there, that’s awesome.) 😀
Though Spot is pretty dang stretchable, the phallus isn’t actually hollow. As it was explained to me, the skin graft from my arm was rolled around and around into a tube shape before being attached, with the original clitoris buried within the base of that tube of skin. So it’s all meat, in there.
It’s more complicated than that, of course– I’m not even getting into the blood vessel/nerve grafts involved. But there’s definitely a thickness to Spot when I have him in my hand.