I have never faced this, but wonder if keeping some clothes on is an option? I have given birth to four kids, and my genetics lend themselves to severe stretch marks. I have some loose skin that is more obvious when I weigh less, so less obvious when I am 20 pounds heavier than my ideal weight. If I am not feeling comfortable with someone seeing me, then I wear sexy nightwear that shows the parts of me without stretch marks and hides the parts that are less attractive. If everyone is honest, I think this is a good solution. The guy I am engaged to marry likes to kiss my stomach and I trust him to see all of me. He had gastric bypass himself but doesn’t really have much loose skin. If I were you, I would apologize for men being so visual. I would tell her that you are really attracted to her but find the extra skin distracting. Ask how she would feel about exploring sexy nightwear that works for both of you. It could be fun!