Adult film star Jeremy Ronning has been a staple in the industry for years thanks to his famously large unit. But as he gets older, it's getting harder and harder to keep it hard. During a long day of filming, a co-star offers him a supplement that instantly gets Jeremy energized to perform. <br> <br>But soon he realizes the supplement has a horrible side effect: each time he gets aroused, his unit gets smaller and his body more feminine. Unless he can find a way to change back, he could lose everything.