In normal development, females have a different hormonal and genetic blueprint compared to males which doesn't lead to penis development. So if there is a so - called 'girl grows a penis story', it's likely either a fictional or a misrepresentation of an intersex situation. Intersex individuals are born with differences in sexual characteristics that don't fit typical male or female definitions, and proper medical understanding and support are crucial for them.
There is no natural way for a girl to grow a penis in the normal biological sense. However, in extremely rare cases of certain genetic disorders with intersex conditions, there may be ambiguous genitalia at birth which can be misinterpreted in a very simplistic 'girl grows penis' - like scenario, but this is a complex medical situation involving chromosomal and hormonal abnormalities, not a common or typical occurrence.
In mainstream comics, there are no such inappropriate stories as the term 'girl penis' is biologically incorrect and not part of normal comic narratives. Starfire is a character from Teen Titans and her stories typically revolve around heroism, friendship, and adventure.
Definitely not. Unless it's in a very specific, consensual, and appropriate medical or sexual relationship context (which is also highly regulated), touching someone's penis without permission is completely unacceptable behavior. It violates personal boundaries and can cause a great deal of discomfort and harm to the person.
There are many positive alternatives. For example, we can focus on stories about girls and their positive relationships with animals like horse - riding together in a proper and respectful way, or stories about girls' achievements in art, science, etc.
In a fictional sense, it could be due to some magical or supernatural event. For example, in a fantasy story, a spell gone wrong might cause such a transformation.