The little gasps and the whispered "fuck". The uncontrolled "mmmmm" or hearing "oh my god" quickly escape from their lips. It almost feels like I'm stealing those pleasure sounds and it's so delicious.

your fc padded for a long car trip, given their history of being unable to hold it for more than a couple hours but being too embarrassed or prideful to ask for a stop. they're ashamed of the extra protection, but quietly relieved that they won't have to face the torment of wetting themself visibly again. still, they try to hold on as long as possible, not wanting to spend the entire car ride nestled in a soggy diaper. eventually, they can't hold it any longer, and relax back into their seat, watching the scenery go by as their nethers are bathed in warmth. it's soothing enough to almost send them to sleep, the desperation finally relieved and replaced with comforting warmth. however, another problem arises as the consistent motion of the car and relief of an emptying bladder arouses your fc, and they're left with hours of a car ride ahead of them and an aching desire to get off.

your fc hurrying to their bedroom after a series of delays kept them from changing their diaper for far too long. they rip a fresh diaper from the pack under their bed and lay it out, fumbling with their pants. they give up on trying to get the new diaper on, and instead pull the old diaper free and crouch over the soft white padding. they moan in relief as they finally empty their bladder, hissing loudly against the still open diaper, thighs shivering as they try to keep themself held up. as the last dribbles wane, they look down, only to realize they missed the diaper entirely in their haste.

what if a guy asked you to suck him off to distract him from his bladder

Bonus points if he’s leaking, squirming, whimpering, or crying.