"What, she tripped, fell, landed on his dick?"

Yes.

Accidentally forgetting to wear underwear. Unwanted erections. Slipping on wet puddles. Falling on top of someone and accidentally pulling their shirt down. Sitting on top of a vibrator’s remote control. An increasingly unlikely set of circumstances that conspire for characters to get each other off in unintentional - accidental - ways.

(An adaptation of a linear story I wrote for literotica. Feel free to contribute your own content.)