I go to work suited, but want an idea of something to put in my pants just before I leave, something messy but won't be too obvious as I leave the office.
I recommend a banana for this. It takes a while for it to penetrate the fabric. If you wear leather jeans under your work trousers, nothing will come through. It also smears your crotch all day long. It is wonderfully slimy and you can cum in it several times a day