Slimming Edits for Vacation Photos

I have 10-15 professionally shot family photos from our recent beach vacation that need thoughtful retouching. My main goal is subtle but noticeable slimming around the waist, face, and arms so that one person looks his best while still appearing completely natural. Whatever method you use—Photoshop, Lightroom, or another pro-level tool—the results should blend seamlessly with the original lighting and sand-and-sea backdrop, avoiding any tell-tale signs of manipulation.

I’ll supply the full-resolution images in the original color profile. Please return finished JPEGs (and layered PSDs if you work in Photoshop) at the same resolution. Accuracy, a light touch, and a quick turnaround will be the factors I use to approve the work. Emphasis on "quick turnaround"... Hoping within a week