I love it when I've been in my diaper too long and my mommy (wife), "punishes" me for flooding my diaper and plastic pants. I'm usually kept in a thick cloth night diaper, insert and plastic pants. If mommy discovers I've gone pee pee (which of course I always do), she'll remind me that big boys shouldn't need to wear diapers and proceeds with my punishment.
She'll first pull out the insert from my diaper and waive it around while holding her nose saying "look at the big baby who pee peed his diapee". Then she has me get on all fours with my diaper and plastic pants pulled down enough to expose my rear end and with her strap-on, starts giving me her punishment. She knows I can't take the dildo while on my knees for too long so she purposely puts the wet insert down on the plastic covered bed so when I fall from my knees, my face gets pushed right into the insert.
She really starts to loose control when she thrusting her dildo in at out of my backside and when she starts to have an orgasm, she grabs the back of my head and buries it into the soaking wet insert. She then has me get back on my knees and reaches around and starts jerking me off while she goes after orgasm number two. Almost instantly I start shooting all over the insert and of course when she starts to moan I know my face is going to be pushed right back into what is now not only a wet diaper insert, but loaded with cum as well.