Lexi was the kind of girl who got straight to the point.
You can barely remember what had happened, and you were already in some restaurant bathroom, sitting against the sink, with Lexi pulling your pants down. Your pants hit the floor, but your boxer briefs were still on. She grabbed your button up shirt, ripped it open, and rubbed her hands up and down your torso. "Jesus...you are huge..." She said, admiring your gigantic musculature. You felt an odd sensation shivering through your body as she rubbed on you. You begin to get a semi erection, but it's moving towards full.
She goes back to your waist, and gasps, seeing your current 9 inch semi erect penis sticking out the right pant leg of your boxer briefs, pushed out by your gigantic balls, that constantly tugged the underwhelming underwear you currently had tightly wrapped around your gigantic genitals. "Holy shit!" She said, quickly pulling off the boxers, and grabbing your cock. "How big is this thing?" She said, tugging on it softly.
You just smiled, and said nothing, as it continued to harden. "It's getting bigger..." She said. "My hand won't even get around it..." she said, as it filled up in her hand. It was like she was holding an inflating balloon. You leaned back, and she stroked up and down your long member.
You felt something, and smirked. Little by little, tiny centimeter by centimeter, your body was growing again. You didn't know why or how, but you didn't care. You shoulders began to widen, your button up shirt slowly moving more open. Your perspective moving away from Lexi, as she stroked your penis, as it grew past your previous 12 inches. "Fuck...it's so hard...but it keeps...grow...ing..." She said, looking up at you, seeing you slowly growing in size.
She paused, looking shocked. You weren't sure how she was going to react. She smiled. And went right back to work, with both hands. "Yeah...grow for me big man." She said.
And grow you did. Pulling off your shirt, as your mass began to grow out and away from Lexi.