I think sometimes the girl doesn't tell the booker, so that she can continue to work. Nothing the booker can do about that. So I think its all on the girl's responsibility to do a good job sponging that up, or at least telling the client ahead of time, or offering something else. She better be on her A game.
Its happened to me twice
Once with an ATF. she was hotly W sitting on the bed
and left a red stain as she leaned up to kiss me on white sheets.
"Uh oh"
"Oh shit"
"Je savais pas, ca vient de commencer"
"Merde, je suis ton premier client en plus"
"Shiiiiiiiiit"
"Shiiiiiiiiiiiiit"
gave me a nice double bj to compensate, which was nice.
second time, the horror:
During the action in laying CG, i felt something wet around my groin, in my head "damn, this girl is really enjoying this" but then her moans did not match the wetness lol, so i look down and yup! it was a murder scene from a horror movie.
and a few times where i felt the sponge.