I don't really write these often, so forgive me if this is boring, but I want some of your opinions on this. For some context, my wife and I have been married for several years and we're pretty happy. We own a fairly nice place and have a couple extra rooms, and because my in-laws are going through a lot of martial issues, my wife's youngest sister moved in with us to avoid their insanity. She's 19, and she's really cute, like adorably cute. I've felt like a big brother to her since I met her and I've always thought she was funny and probably the only sane person in my wife's family. As a final context detail, I work nights, and my wife works mornings so we only get to hang out at night usually. This morning when I came home, my sister in law, we'll call her Sarah, was talking with my wife and I joined in the talking and started to make dinner for myself. My wife left and I continued talking with Sarah for a while about how her life is going and other small talk. We've always gotten along pretty well and we're open about our opinions, so when she brought up how she wanted to get drunk with her friends, I started to talk about times I had been drunk before. We talked about our favorite kinds of alcohol and how we found out which ones we liked and stuff. Im pretty open about my past and I've had some wild times so I told her about a time I was renting a place with two women and we all ended up naked in the living room the first time we had gin. I realized that might have been TMI so I laughed and tried to play it off as a "being drunk makes you do weird things" kind of story. Sarah paused though and then talked about how she played strip poker as a drinking game with some of her friends a while back, and similarly ended up naked with her friends. I will admit, I've thought she was sexy before (what man doesn't think about any woman this way), but I admit I was thinking about what it would be like to be drunk and naked with her. I carried on talking with her though like it was normal and asked how she felt about it and if she did anything. She shrugged and said they didn't do anything just got naked. I wanted to stay on the topic so I talked about how I feel like if there's good boundaries and you don't get too stupid I felt like being naked around people you know is a good bonding experience and I thought it was fun. She laughed and said "Yeah, I agree". She told me that she felt self conscious about her body though and felt like people wouldn't like her boobs. My heart began pounding as I realized that this was a topic that could be bad if I said the wrong thing, but I really wanted to keep the window of opportunity open so I said that most men would probably be too excited about seeing her tits to dislike them for any imperfections. She smiled and looked down at her boobs, and I swear I saw something about her body language, like maybe her hands twitched like she was going to feel them or something similar, but right then her phone rang and she started talking to someone. I didn't want her to think anything was weird so I carried on with making food and that's as far as the conversation got. For full disclosure, I don't want to do anything that would jeopardize my marriage or make her uncomfortable or cross any lines in general, but to be frank I truly do think that being nude around people you trust and are comfortable with is actually a good bonding experience, and God I would love to see her nude. Anyway, I just wanted to confess this since I feel bad, but I wanted to hear what random people thought too. Sorry it was so long lol