Private Dancer by Richard Greye

Ron Harrison is an unassuming, attractive English professor. He never expects to end up at a strip bar. But when his friends drag him to one, his casual aloofness ends the moment she walks on stage.

Mia Kawahara is literally the woman of his desires. She's strong, busty, beautiful, and unlike anyone he's ever known. But when she appears in his college classroom weeks later, a passing fantasy becomes a dangerous reality.

And then she starts getting stronger.

Ron never meant to fall for her. He never meant to encourage her obsession with muscle. He certainly never meant to need it. But Mia Kawahara keeps packing on size with ruthless efficiency. The more she grows, the harder he falls. The more powerful she becomes, the more he wants to surrender.

But with a predatory dean closing in, careers are on the line, and Mia is discovering that strength can be both protection and a dangerous addiction. Ron must decide how far he'll go to defend the woman she is becoming, a goddess who could break him, and whether the dean will destroy them both before she finishes her transformation.