The Messy crossdresser is dressed in a black leather business suit & heels. The suit & heels are seen as a prized outfit by the messy crossdresser and have never seen a drop of mess on them, no matter how tempting it has been.
But today the "Sploshem" team will ensure that changes. The Messy crossdresser has been called into the "Sploshem Studio" to wear a leather outfit as all the team have been encouraged to, that way the messy crossdresser is going to get messy.
They go into the studio space, sitting on the edge of the bath showing off the outfit and heels accordingly. From there they try to leave the studio, as know all the mess currently in the studio is likely for them.
However they know whatever they try, the suit & heels aren't staying clean and won't deny to themselves the suit & heels have to get messy eventually so why not now.
From there they lather the suit with the bucket of mess & proceed to lay in it, all while covering themselves in as much mess as possible. The leather suit & heels is sufficiently covered, once fully satisfied, they lie in for a period of time, before showering fully clothed to get cleaned up and ends the session.