Teenage girls "New balance" running snea

Last night, i had a couple buddys over. One of em brought his GF, and she took her shoes off at the door. Once everyone was chilling, i went and smelled them and took them to the bathroom and came all over the outside of em and pissed on the insides.
And when it was time for her to leave, she put her socked feet in them and was alarmed by the unknown liquid in her shoes and now on her socks.
She was confused for a sec but still wore them covered in cum and full of piss <3