She’s sexy, single and looks better than ever! And Jessica Simpson is determined to keep her famous physique as she gets older.

While she insists she hasn’t had any plastic surgery just yet, Jessica says in the August issue of Harper’s Bazaar, “Maybe after having kids, if my boobs dropped down to my belly button, I would get them lifted.”

If Jessica does decide to go through with a breast lift, she’s in luck: A new procedure creates an “internal sling” that is said to be more effective than previous methods.

Using internal stitches, this surgery repositions and reshapes the breast tissue, “lifting breasts to a perky new shape,” explains Dr. Chris Saunders, a Delaware plastic surgeon who hasn’t treated Jess. (A traditional breast lift removes loose skin, but the potential remains for sagging later.)

So far, Jessica — who just launched a swimwear line and recently began working on her new movie, Major Movie Star — is keeping her shape the old-fashioned way! [source: Life & Style]