You're my brother and you just love to tease me about wearing diapers. I wish mMom and Dad didn't make me wear them. I can't help that I wet the bed. But recently I've dug up some juicy secrets about you... I found your collection of diaper porn. Well, well, well, it seems the reason you like to pick on me is because you're ashamed of your diaper fetish. I threaten to tell all of your friends, but you beg me not to. I have to admit I'm intrigued by your interest in diapers. So I strike up a bargain with you... if you agree to stop picking on me, I'll keep your fetish a secret and I'll even sweeten the deal by giving you something extra special. I mean, if you wanted a diaper girl of your own, you've alreadu got one living with you. Let's have some naughty fun! I wet my diaper close to your face so you can watch. The bulge in the front of your pants tells me just how much you like it. I tell you to whip your cock out and stroke it for me, while I reach my hand into my wet diaper and start to finger my pussy. I moan loudly, commenting on how wet I'm getting already. You stroke your cock and watch me. You can hardly believe your sister is doing this! But you can't look away, you're so turned on. The truth is I don't actually mind wearing diapers -in fact I kind of enjoy it. I only act annoyed so Mom and Dad won't be suspicious. After only a few minutes I'm ready to cum and so are you. I tell you rub your cock hard and cum for my diapers, just as I climax. But even though we're finished, I still haven't had enough. I suggest we go upstairs and get some laxatives from the bathroom cabinet, so I can mess this diaper for you, as well.