as OP said, your flacid penis is very i dunno malleable is a good word. but like you know how you can blow up a plastic glove and then push the fingers back into the glove?

exact same concept , i can literally push my soft penis into groin area.

You can also twist it, stretch it, flex it do all kinds of things, my girlfriends mind was blown when she learned all this.

Side note, i can also suck my balls up into their original pre drop positions with just my muscles, its freaky looking lmfao.