While she was unhappy about her boyfriend not fully shrinking, she didn't really expect to see the full effects of the pill actually take effect since she chose to split it with him, thinking it would have the adverse affect on her ...
But she didn't expect what happened after taking it.
After months of getting used to it, and the new size of he boyfriend, the two of them sat down to have a discussion about their future together, her boyfriend, not really able to do anything with his life anymore, at least not at his size, realized he'd depend on her for just about everything, even if she now had a much bigger dick than him, though it didn't bother him all that much as she was still the same person he fell madly in love with a few years back.
While she on the other hand found herself feeling more and more horny every day, getting used to the new hormones her body began producing since she grew a penis, and some more dominant aspects of her personally became to surface, often times forcing herself on her boyfriend who could only go along with it, in loving adoration, ever thankful that she didn't leave him.