Foggy makes Matt come in his little silk panties until they’re totally soaked through and then he makes him wear them the whole day, while going to lunch, interviewing witnesses, sitting in their office etc. Foggy checks them frequently and whenever they start to dry, he makes Matt come again, until Matt's so wrung out on pleasure that, by the time Foggy finally fucks him at the end of the day, he can't even get slightly hard anymore. Go crazy with any other kinks you'd like to add (spanking, cbt, size kink, humiliation, etc)!

Bonuses:
-Foggy talking dirty to Matt the entire day
-Matt's sensitivity giving him a hair-trigger
-Matt being made to get off in at least one public setting
-I would not say no to Matt being hairy, because a hairy Matt in a pair of panties is a lovely image