what I want my girlfriend to do for me

 I'm probably a little odd but I turn on when my girlfriend masturbates with the panties and preferably panties she has had all day. She rubs them against her pussy so that they are full of pussy juice before she takes them off and sniffs, licks and puts them in her mouth. It's disgusting and that's what I want her to be.

She does not want to do this but sometimes does it for my sake. She pee in her pants and then we walk home so that everyone we meet can see how wet she is. Do not know why I like it. Maybe because it's a little odd and degrading. I absolutely do not want to humiliate her in any way.