Idea for a voice recording RP

Well, a guy contacted me today and asked if I would do a voice recording.

He wants me to imagine a scenario where his wife comes round or where she and I meet somewhere.

I must admit I find the idea quite hot, and am thinking of a couple of scenarios but can't help thinking they're a little cliche - I don't want to go down the route of old porn movies where the plumber comes to fix a leaky pipe or whatever.

I thought perhaps she got a letter addressed to me delivered to her house by mistake;
Possibly she's lost her purse on a walk and I help her find it;
Maybe she's in the garden and I stare a little too long;
Maybe she catches me playing with myself.

I dunno though, writers block maybe?