Because 38 d means you're bigger around and your boobs are less

Do you experience these symptoms? If so, you NEED to do something! – Curvy Kate UK

#1 Butt Enhancer and Breast Enhancer Vitamins – Butt

The Best & Most Supportive Wireless Bras for Large DD+ Breasts: An Honest Review

Large Breasts and Running - Sports Bras for Large Breasts

Bra Sister Sizes To The Rescue - Sisterhood Of Bras

Here's Why One Boob Is Sometimes Bigger Than the Other

38D Bras: Understanding the Cup Sizes, Boobs & Equivalent Bra Size - HauteFlair

16 Best Bras 2024: T-shirt, Strapless, Everyday, and More

21 Best Bras for Large Breasts, According to Experts and Testing

Bra Sister Sizes To The Rescue - Sisterhood Of Bras

Bra Fitting: Guide to Fitting the Right Bra for You

How to Measure Your Bra Size the Right Way