Halle Berry is drop dead gorgeous. There’s no question about that. Now she’s sharing one vital piece of information about how she’s stayed that way–with regard to one of her major assets.

The Extant star has just released her own line of lingerie in Target stores, and she says there’s a reason behind her passion for good quality undergarments.

“It is because I wear these things all the time, if you don’t want your boobs on your knees, it’s very important,” she said during an interview with Extra.

“It’s something I’ve always loved, I mean I have worn a bra and slept in a bra, probably TMI, since I was 16 years old,” she added. “My mother taught me the importance of that and taking care of my body on that end, so lingerie and undergarments have been really important to me.”

Halle Berry's Boobs Aren't At Her Knees And Here's Why! #fashionsmashion #halleberry #target #boobs http://t.co/mHPGGZol2k

— Coco Perez (@cocoperez) May 8, 2015

Halle Berry partnered with Scandale Paris lingerie to create her one-of-a-kind collection of pieces that are sexy, pretty, functional, and affordable.

Reason to be happy: Halle Berry wants you to be able to afford sexy lingerie http://t.co/wlTNBh1VTw @ScandaleParis pic.twitter.com/qEsKg1qPeI

— People magazine (@people) April 2, 2015

Presently working on the second season of her hit CBS series Extant, Halle Berry will soon be back on TV for another summer run.

Between her lingerie line, TV, and family–which includes daughter Nahla, who is seven and from her relationship with Gabriel Aubry, and son Maceo, who is 18 months old and from her marriage to actor Olivier Martinez–she is one busy lady.

Nahla is quite likely to grow up to be as beautiful as her mom.

“She’s into dress up, hair and make-up, fashion shows, she’s a girl, girl, girl, you will not find her in a tree, she’s in the salon with me playing with my makeup and just trying to be all things girly girl,” Halle Berry says.

She adds that Nahla is very protective of her little brother, and expects she will give the young ladies a hard time down the road, when they line up to date him.

“Nahla will not be having it, she’s so protective of him.” Halle joked, “She’s all but said, ‘Girls look out, gotta go by me!’”

There’s certainly lots of responsibility weighing Halle Berry down, but she appears to take it all in stride. Two things that won’t be weighed down, however, are those boobs. They’ll likely be supported even better than before, thanks to her new lingerie line.