A codpiece was designed to make the man's genitals appear much larger than they actually were. Therefore it would be probably true that Rick would wear an XXL as compensation. Of course if he attracted any female interest as a result he would have to refuse so as to avoid disappointing her.
By the way, I have sent a number of old pictures into "A Voice in the Corner". If anybody would like to see an illustration of a girl getting spanked with a fish go to
http://voiceinthecorner.com/ and look under "Tip Top", 26 Mar12, "Something Fishy".