Convincing her to grow a penis will have her use a vial of Throbb to turn herself into a hermaphrodite. Afterwards, Penny can be convinced to take more Throbb, where each use will increase the size and production of her male anatomy. After her penis is over 17" long, she will be in a sex-addled state and Steele can tell her to
Calm Down or
Tease Her. Teasing her will unlock her exhibitionist tendencies and Steele can decide if she will let others
Join In,
Let Watch, or have her try to
Hide It. Choosing any of these will alter her encounter reactions and she will permanently become a total Cum-Slut.
After Penny becomes a cumslut, she will offer her pair of
panties.