Thinking about or seeing my ex jerking off totally excites me.
My ex boyfriend and I still see each other as friends, and more often than not, I try to excite him sexually by playing 'naughty'. Like we will be watching a movie at home and I'll want cuddles on his lap and then I pretend to 'accidentally' rest my hand near his crotch, and if I can feel he's getting hard I'll ask him in a naughty childlike voice 'what's that?' Then if he allows me we'll take things further, I get him to jerk off for me after I've given him a bit of a tease.
But that's not what I wanted to write about, that's just an introduction to the sexual vibe we still have.
The other day I saw my ex again, we went for a walk in this park up a hill, there are some patches of trees, some trails and a road to the top. On the way down we were playing games, I'd pretend I was going to push him down, he'd run off ahead and I'd chase him.
Then I'd come up to him from behind and pretend to give him a push but at the same time put my arms around him from behind so he wouldn't fall. After the second time I got the idea to let my hands slip towards his crotch. I think he got the hint of what I wanted.
I asked him if he'd ever cum outdoors, and that some people get a buzz from that, it's supposed to be nice. He lead me to a few patches of trees, I wasn't sure what was going to happen. We started to feel each other up from the outside of our clothes, constantly checking if we could hear or see people get too close, so we could stop if we did. I wondered if he'd let me get out his dick, so I unzipped his pants and stood close to him and played with it a bit. He felt my pussy on the outside but I didn't let him unzip me. I wanted him to cum of course, but we had to be careful. I knew he'd have to cum fast in case we were seen, so I said here you do it, and he started jerking off. After about a minute and a half he spurted cum all over the ground. I could see the white blobs on the dirt under the patch of trees, taking a snapshot in my mind so I could replay the events vividly. When I got home I got off on the memory, of course.