So a couple days ago me and my guy friend were hanging out like normal. I've known him for a long time, so as usual I wasn't wearing a bra because we're past that in our friendship atp. So eventually I get thirsty and ask him to go refill my water bottle. He says sure and a kinda long amount of time goes by before he eventually comes back and hands it to me. The night goes on and we're talking, gaming, smoking etc, the whole time I'm drinking away from my bottle. After a while I ask him to refill it again and he gets this weird sick grin on his face and starts laughing hysterically. Finally I get him to explain and he confesses that when we were talking watching my tits move and seeing my nipples through the shirt made him extra horny for some reason, and when he went downstairs to fill my bottle, he jerked off into it and then refilled it! I don't know what he was thinking, we were both high but he's never done anything at all like this before or ever even hinted that he thought of me like that. I'll admit at the time I was a little pissed off hearing this, but I pretended it was fine and laughed it off with him. Since he left that morning I've been thinking about it and I'll be honest, I think it's really fucking hot. Something about drinking his cum without realizing made me so fucking hot everytime I thought of it. A few hours ago, I even masturbated to just the thought of it alone and made myself cum. I'm not even a little bit mad at all anymore, and now I'm obsessed with what I guess is my new kink. Today I've decided I'm gonna text him to hang out again and ask him to refill my bottle again while he's here. And I really reallllly hope he cums in it again since I laughed it off in the moment and kinda signaled I was okay with it. I'll try to see if I can taste it this time 🫣