Supernatural Doctor Who crossover
"Don't worry Dean, it will wash off," the Doctor said as he and Dean stepped back into the TARDIS. Dean had gotten covered in a sickly pink and sparkly slime.
"Goddamn it Doctor you said you were going to take me to a planet made of pie," Dean said.
"And I will. Go get washed up while I set in some new coördinates," the Doctor said.
"You better get us to the right place this time!" Dean called out before going to find the bathroom, he hoped it was in the same place as last time.