My fiance fisted me for the first time last night!
We (I am 28M and she's 26F) have been together for almost six years, but I had never told her about my anal fetish and continued to play by myself in secret for a while. Last year, I accidentally forgot to hide away a bottle of lube, and my partner was pretty upset when she found it on the counter. At first I think she thought I maybe was cheating on her, which is understandable, and even after I explained what was actually happening she was still pretty angry that I had hidden something like that from her for such a long time. She didn't think the fisting itself was weird or bad, but I think she was pretty hurt that I felt like I couldn't trust her enough to tell her about it and involve her. We were also in kind of a weird place at the time - we had recently moved out of our apartment to live with my parents while I finished my degree at college, and she had recently started a new/pretty stressful job, so tensions were just generally high.
Most of the last year passed without it really coming up again, since I still felt kind of embarrassed to bring it up, and also because between work and school and her full-time job we were kind of exhausted and didn't have much privacy anyway. Then, of course, the quarantine happened, which prompted us both to take a step back from all the stuff we had previously been busy with and try to be a little more deliberate about making time for each other and communicating our needs and stuff. Butt stuff came up during that process, at which point I formally asked her if that was something she would be interested in trying. We still live with my parents (I am graduating next spring and then we'll move back into our own place), so having a toy collection is kind of out of the question since it would be hard to be discrete about it, but upon realizing we were going to have the house to ourselves for the weekend we made a plan to try some hand stuff.
I bought some lube (Sliquid Organics Natural Gel, which I picked since my fiance and I are both vegan. It was fine but tbh I think I'm going to look for something thicker next time), and a couple rubber gloves for her since she didn't want to cut her nails. Unfortunately, I got the wrong glove size, so they were kinda loose on her hand which made it sort of scratchy. I'm going to get proper latex gloves next time for a slicker experience. Even though the glove made it a little uncomfortable, it felt absolutely incredible having her fist me, plus it just feels like a huge weight has been lifted. Like, I was cleaning out ahead of time and I just though "Wow, I can't believe I don't have to be secretive about this anymore!" It was a great night, and I can't wait to play some more another time!