This story took place a year ago. My roommate came out of the shower and asked me to come help her clasp her necklace. I came over to help her out, but what I didn’t expect is that she didn’t have clothes on when I did. She had her back to me and was butt naked. It simultaneously made me feel uncomfortable, as we usually only changed down to our underwear in front of each other, and simultaneously aroused me a bit. Here she was, standing in front of me so exposed. I clasped her necklace wordlessly and instantly averted my gaze from her ass, as I didn’t want her to catch me looking in the mirror reflection. Though I was laser-focused on the necklace, I could still see her ass out of my peripheral vision, inches away from me.
The next week, she came in after a shower when I was lying in bed and took off her towel. She did it in an obvious way in the center of the room, then changed. I again looked away this time to respect her privacy, but the initial glimpse I got of her ass turned me on. I have a feeling she was very consciously doing it as she always made sure to have her back to me, so I think she was choosing to hide the front of her body but willingly showing the back of her.