My big brother, Toby, likes to make fun of me for still having to wear diapers. But looks like the shoe is going to be on the other foot very soon, as I have some serious dirt on him. I tell him that I caught him out with another girl, and I have pictures to prove it! I threaten to tell his girlfriend that he's cheating on her, but he begs me not to do it, saying he'll do anything. So I make a deal with him: I'll delete the photos, and pretend this never happened, on one condition... he has to put on a diaper and wet it! He really doesn't want his little side-bitch escapade getting out, so he agrees. I make him lay down as I pull off his pants, and underwear. I apply a liberal amount of baby powder, telling him that I don't want him getting a diaper rash. Then I secure the diaper in place with four tapes. Finally my brother is all diapered. He is so horribly embarrassed. I pull out my phone and start taking lots of pictures, just in case he decides to back out on our little deal. Then it's time for the second part of our arrangement: Toby has to wet his diaper! He is so humiliated, but manages to soak it all the way through! You can see the yellow pee stain spreading across the front of his diaper. At last, Toby has lived up to his part of the bargain, so I delete the photos of him and the other woman. He tells me to delete the diaper pics too, but I tell him that I'm keeping them as a little added insurance. If he ever picks on me for wearing diapers again, I'll have these to show EVERYONE that he wet his diaper just like a baby!