Accepting the magical underwear (Patreon)

Now that his baby bump was showing, Drew Heard was both afraid and excited about testing positive for his pregnancy. He had been on the pill as a precaution after he started wearing his magical underwear, but once he knew that he was going to be an actual mother, he stopped taking it. The chances of becoming pregnant by his trans girlfriend were extremely low, especially since she was supposed to be sterile. So after Vera and Drew made love repeatedly during their Italy trip, he was actually surprised by the low possibility of bearing children.

After all, when the magical underwear transformed him into a woman, he assumed that he just physically looked like a woman. He should've realized that pregnancy was a possibility when he had his first period. And when he stopped getting his period a month ago, he should've known that something was off. But the feeling of his girlfriend's cock slithering through him made him want to keep going. She'd plunge into him through the slight opening in the pink underwear, but after days of keeping it on him, they realized that the underwear had somehow fused and disappeared into his skin.

Now, he was trapped as a woman. It was initially a horrible feeling for Drew. He'd spent a fortune on it for his girlfriend at their hometown's magic shop. But after Vera decided that she preferred her original figure, Drew decided to try it out just for fun. He wouldn't find out until months later in his pregnancy that impregnation made the gender swap permanent. Because he'd used protection when his girlfriend had transformed, the underwear didn't become a part of her. Since she still had some potent seed, Drew instead became the beneficiary of the underwear's power.

But as they remained in bed together with his girlfriend's hand over his tummy, he realized that this wouldn't be so bad. They'd be mothers together. And when his girlfriend gave him a comforting kiss on the lips, he just knew that becoming a woman forever was the best mistake he'd ever made.