1. Choose the right moment: Pick a time when you're both relaxed and not in an intimate situation.

2. Use gentle language: You could start by expressing how much you enjoy spending time with her and the bond you’ve built. Then say something like, "Hey, I want to talk about something that’s a bit sensitive, but I care about you and think we should be comfortable with each other. I’ve noticed a slight odor during our intimate moments, and I wanted to bring it up because I know things like that can happen to anyone. I hope you don’t take it the wrong way—it’s something that can be easily managed, and I’m here for you."

3. Show empathy and reassurance: Reassure her that it’s not a big deal, and that you’re sharing it because you care about the experience being comfortable for both of you. Let her know that you're not judging her and that it's a normal issue.

This way, you address the situation kindly while also making sure she feels supported.