The chocobros have some sort of dumb bet going, or maybe Prompto loses at cards. The upshot? He has to do what everyone else says for a week.
The other chocobros, who know damn well how eager and sensitive Prompto is in bed (and think it's REALLY hot how wound up he gets), decide it would be hilarious not to let him come for the duration of the bet. Cue a week of sexy times with Prompto getting teased out of his mind and doing things for others but not being allowed to finish.
+++Buttplug in the car. Ignis picks the bumpiest roads he can find, and Prompto is EXTRA squirmy. +++++At some point, Prompto just can't keep his own hands off himself and they tie him up.
Chocobros/Prompto; Prompto can't come for a week
The other chocobros, who know damn well how eager and sensitive Prompto is in bed (and think it's REALLY hot how wound up he gets), decide it would be hilarious not to let him come for the duration of the bet. Cue a week of sexy times with Prompto getting teased out of his mind and doing things for others but not being allowed to finish.
+++Buttplug in the car. Ignis picks the bumpiest roads he can find, and Prompto is EXTRA squirmy.
+++++At some point, Prompto just can't keep his own hands off himself and they tie him up.