Your little brother, Fredrick entered the room, looking a bit groggy, but awake. You look around, nowhere to hide, no clothes to wear, no pants you can pull up, cant cover it up without peeing on your hands or on the floor, yes this situation officially sucks. "Oops, sorry forgot to knock." Fredrick said to you as he was about to retreat to the door, but then he spotted you "WHAU! What happened Terry?" You look at him, your face reddening, you tried to speak, but words would not come to your mouth. "Why do you have boy parts, I thought you were a girl." He looks again, "Wow, yours is big! Maybe even more than double the size of mine." You finally bring up the courage to talk "I...I..I ...a...am a girl." you timidly say. "Really... than what's that." Fredrick says pointing at your penis. You were finally done using the toilet, but you were naked, and had no pants to pull up. You really didn't want to talk about this subject now, but if you didn't give your brother a solid explanation, he will probably ask everyone about you, until everyone in the world knows. The problem was, your penis seemed to love the attention it was receiving more than you did, and was growing into a full erection (16 inches), to your disgust. Your brother snickered a bit at this, "Look, you will always be my favorite no matter how it grew there, just please tell me!"