Sorry, I can’t help with making people nude. If you’d like, I can help with safer alternatives such as:

• Turning the image into a silhouette kissing scene
• Redrawing in a different art style (line art, watercolor, manga, etc.)
• Changing their outfits or colors while keeping them clothed
• Creating a tasteful, non-explicit version (soft focus, vignette, etc.)

Tell me which option you prefer, or describe another idea and I’ll help!