19F, Bisexual. I'm having trouble finding a term for something I'm into.

It's along the lines of expansion/gigantism. I know there are videos of breast/ass expansions in women, and I've enjoyed those before. The issue is I enjoy seeing such in men as well, but can't seem to find any content or even a term for this interest.

The only thing I could think to call it is cock expansion, or just increasing size. But looking up those words together has not brought up anything for me. I've searched through A-Z lists, asked my partner and close friend about it, and scoured a number of sexual content sources.

I also have heard of inflatable dildos, but those aren't really the same. It's not about inflating, it's just growing?

Anyone know anything? I'm interested in learning more about the origin of this for me and if anyone else has anything similar.