I noticed this couple on reddit posting that they were looking for a guy to fill her panties with cum. Checking their account they seemed legit so I added them on snapchat and we started snapping back and forth, I was mostly chatting with her boyfriend but getting pictures and videos of her. He told me she was really shy and never done anything crazy or with another guy but that he was slowly turning her to the dark side. He talked about how for a first time maybe he would like for her to just meet a guy to fill her panties with cum so she could come back to him all sticky. Then eventually he started asking me when I was available, and finally set a date time and place.
I was meeting her in an underground parking lot. Her boyfriend told me to let her control everything and to not force anything on her or else she would hate it, which was fine with me. He told me that when she arrived she would get out of her truck and we would do this standing, me jerking off directly towards her lowered panties.