Undergoing tummy tuck and breast augmentation surgery at the same time can offer several benefits, including:

1. Time and Cost Efficiency: By having both procedures performed during the same surgical session, patients can save time and money, as well as minimize the overall recovery time and the number of surgeries required.

2. Improved Body Proportion: Tummy tuck surgery can help to tighten and tone the abdominal area, while breast augmentation can help to enhance the size and shape of the breasts. Combining both procedures can result in a more balanced and proportionate body appearance.

3. Reduced Physical Stress: By undergoing both procedures at the same time, patients can reduce the physical stress and strain associated with separate surgeries and recoveries.

4. Single Anesthesia Experience: Having both procedures performed during the same surgery means that patients will only need to undergo a single anesthesia experience, which can be less risky than having multiple surgeries.

5. Convenience: Having both procedures performed at the same time can also be more convenient for patients, as they only need to take one recovery period and can avoid multiple surgical appointments.

It is important to discuss the benefits and risks of undergoing tummy tuck and breast augmentation at the same time with a qualified plastic surgeon, who can provide personalized advice and recommendations based on the patient's specific needs and goals.