This happened the same night I am typing this
First a bit of background info: I have a cousin who recently emigrated to Canada from the Philippines and is living with me for the time being. (see linked story above 'Discovering My Cousin's Panties' for more detail). I've been sniffing and jerking to her panties ever since she first arrived and because of this I've become somewhat attracted to her.
Anyway, I've been jerking to her panties so much that I'm starting to get tired of it, however I know her panty collection inside out right now. Well, one night we went to a party (it was for one of her friends birthday) and since I pretty much have no life (outside of my long-distance girlfriend) I said 'Hell yes' when she invited me. She was wearing a pair of low-cut jeans and even though I was pretty much staring at every ass at the party I didn't hesitate to look at hers, so when she took a seat I stared down, and since I know her panties inside out, I was just curious to see which ones she had on. To my surprise SHE WASN'T WEARING ANY! She's not the type of girl who goes commando so I was so surprised.
Anyway, the night went on, I moved onto other asses after that quick peek at my cousins. We then went home, and I was horny as hell from all the staring. When we got home I totally had this quick thought. We live in a basement apartment, so both our windows are at floor level, hers is on the west side and mine is on the east. I then suddenly told her that I had to take out the garbage (which I truthfully did) but as soon as I did that, I quickly went to the west side of the house and decided to peek into her window. It was 1:00am in the morning, we live in a dead neighbourhood and it was pitch black outside, so no one could see me there. Our landlady was asleep, and she could not see me on the outside.
Well, it's pretty obvious what happened after this. I parked myself in front of the window. She wasn't in her room yet, my guess was that she was in the bathroom maybe? Well, two or three minutes past and the light turned on and then she came in and was talking on her cell phone. The drapes on her little window were somewhat thick but easy to see through from the outside when the light is on. Anyway, when she got off her cell phone about five minutes later, she started to change. I can't believe how horny I was. My cock was so hard, sticking out of my opened fly as I was watching. She first took off her top and although she had a bra on she took it off right away. It was so hot!! Her tits are tiny and perky, what you'd expect from a short twenty-something Filipina girl. I was stroking slowly considering how horny I was I didn't want to cum too early. Then she took off her pants, knowing she wasn't wearing any panties I was so horny. I had a lot of precum as she was taking her pants off. Well, her ass was nice and round and as she turned around to check herself in the mirror I saw her front which was somewhat hairy but not too much. Nice, really nice. At this point I was stroking fast as I was staring at my cousin's completely naked body and in no time I jizzed everywhere really hard and moaned but tried to keep it in since I did not want to make too much noise out there. What a perfect way to end a hot night!
Anyway, I think I just discovered a new way to wank to my cousin now that I was starting to get bored of her panties. I can't believe I didn't think about this before!