Your dad had invited some friends over to drink some whiskey and play some poker he comes to your room in the evening before the meeting
Ken:"hey son I'd like you to put these on for me"
He's holding a white diaper and red onesie with cherries on it
You:"WHAT?!? Im not going to dress up like baby"
Ken:"look let's have a deal if you'll wear these and won't wet yourself for the whole night I'll buy you whatever you want but if I'll see atleast 1 drop of liquid you're staying as my baby"
You:"hmm whatever? Okay deal it's gonna be easy"
You dress up and go sit in the playpen In the living room when all of dad's friends start to come
Elliot:"heyyy what's up man"
Rio:"yeahh ready to rock?"
Elliot sees you in the playpen's corner playing with your legs
Elliot:"now isn't he cute? Alright where are the cards!?"