"hmm," Sam starts saying, "well her butt is pretty big. I'd say like big enough to where you can comfortably reach your hands around both checks." As she's saying this, I imagine Sam's hips growing slightly outward and her butt getting a nice roundness to it. I can feel her butt begin to push outward into my balls. "Actually no wait, sorry," Sam says, "sorry I got that wrong, her butt is absolutely massive. Like big enough for two basketballs to easily fit in each cheek." Suddenly Sam's butt gets a large growth spurt, she squeals a little from the sudden expansion. It now reaches from my balls down to just above my knees and has a ton of squish to it whenever I thrust myself closer to her.
Along with her butt growing massive, her thighs have also kept up and filled out to be so thick, her feet have to stand a little apart because of the inner thigh fat pushing her legs apart. "Is there anything else Sam?" I ask.