Title: The Bet Author: justinedelarge Rating: R Pairing: Sam/Dean, brief mention of Sam/Cas, implied Dean/Cas Words: 1700 Warnings: Rimming, dirty talk, orgasm denial, begging, use of secondary erogenous zones; using Sam's sexual responsiveness as part of a bet, which is just terrible of them. Bad, bad boys. Disclaimer: I own nothing. Just for fun. Summary: Cas thinks he can make Sam come harder than Dean can. Dean begs to differ.