Is it normal: jack off into sister's shampoo
So about a year ago, me and my sister were having a big week-long fight. And as one form of retaliation, I jacked off into the special shampoo she orders off the internet. But even though she went off to university in September, I still cum into the bottle she left here.
Is this just a strange fetish, or is this my way of trying to tell myself that deep down, I actually miss my sister...