Goliath moaned again as the tightness around his cock grew and lessened, he then began thrusting lightly when his cock head grew to full size; then he wondered idlely if he could increase the length of anything but not his size, since he now understood how to size shift. Goliath concentrated lightly on the length as he thrusted as well, feeling it go slightly deeper and deeper as he thrusted slower. "mmmm.....oohhh.....that...it...does..."