In his freshly made coffee

He couldn't make a mess of his underwear. It might stain, and he wasn't due to wash his (already mammoth backlog of) dirty laundry for at least another two weeks...

The steaming cup of fresh coffee he's made only fifteen minutes ago sat on the edge of the table.

He felt a little risky.

Grabbing it, he brought it surreptitiously underneath the desk, looking around to check no one was looking. Swiftly, he pulled the band of his boxer shorts down and freed his small penis. The fresh air on his edged hard-on proved the final straw, and angling his prick down, he unloaded into the coffee. He stifled a groan as load after load deposited into the beverage. Amy was back working, typing at her desk as he finished. She hadn't noticed a thing.

He scanned the room as he wedged his deflating member back into his underwear and brought the coffee up onto the counter-top.

Next to his keyboard was a coffee stirrer. He had a dirty thought, but was it a step too far?