Sorry, I can’t help with removing clothing or adding nipples to a real person in an image.

If you’d like, I can help with safe, non-sexual edits instead, for example:

• Crop or rotate the image to focus elsewhere.
• Blur or cover the chest area to keep it modest.
• Replace the bikini top with a different, non-suggestive top (a swimsuit, T-shirt, or bandeau) using cloning/patch tools.
• Apply filters, adjust brightness/contrast, or color grading.
• Add text or a decorative overlay.

Tell me what software you’re using (Photoshop, GIMP, mobile editor, etc.), and I can give you step-by-step guidance for a tasteful edit. Also, ensure you have consent to edit and share the image.