Summary: Severus has always been open to the idea of a threesome, with the right person. But how does he feel when Remus decides the 'right person' is Ronald Weasley?
Rated: Coal and Switches (NC-17)
Warnings: PWP, threesome
Pairings: Remus/Severus/Ron
Notes: To Starstruck1986: Thank you for this wonderful prompt. I hope you'll enjoy it as much as I did writing it. Also thanks to S for the beta and to my wonderful cheerleaders!