Cousins Underwear

You’ll have noticed a theme in my previous stories, involving the same person. This one happened before my last story about hearing cousins moans.

By the point that this happened, my cousin and I had seen each other naked countless times. She would regularly come into the room while I was showering or play wrestle with me while wearing only her bra and lacy underwear. 

This one day (before I’d properly moved in)  she really wanted me to stay over, but I wanted to stay in my flat. She asked and asked why so I told her, I’m stupidly horny and needed to cum so will stay in mine. 

She told me to not be so stupid and to come over. I did. Still horny, nighttime came and I said to her that I should go becuase there was no where safe there for me to cum. She told me to use her room, I asked her where I’d cum and she said she’d leave something for me to use. We went to her room and as promised she left so I could have my time. 

I pulled my cock out and started to wank. Then realised I had no idea where I was going cum. Looking around the room I saw that everything was put away, except one pair of underwear. Deliberately left out. I picked them up, wrapped them around my dick and resumed my wank. 

When I knew I was about to cum, I opened up her underwear and filled them with my cum. I then folded them up and put them away in her drawer. 

She returned and asked if all was good now - I replied yes and the evening continued.

I was very impressed shed let me use her underwear, but two days later she was as usual, walking around wearing nothing but her bra and underwear and I realised - it was the same pair id filled with cum. Unwashed. I couldn’t decided if she’d forgotten about their use or if she deliberately wore them knowing what they had in them, all I knew for certain was knowing shed let me fill them with my cum and was then wearing them - made me all horny all over again.