The fashion designer took to Instagram to post a snap of the actress - who is engaged to her son, Brooklyn - wearing her Victoria Beckham bustier top.
Posh Spice also revealed that her future daughter-in-law is always wearing pieces from her wardrobe.
She captions the post: "Looks like the future Mrs Beckham has been in my wardrobe again! but you’re forgiven because I love this VB bustier on you."
It's expected that Victoria Beckham will design Nicola's wedding dress when she and Brooklyn tie the knot.
Victoria Beckham previously said her whole family is "very happy and very excited" to see her eldest son Brooklyn Beckham tie the knot with Nicola Peltz.
"He's so happy - they are both so happy - [Nicola] is just wonderful. She's sweet, she's kind, she such a lovely, warm and wonderful, wonderful woman," she gushed during an appearance on UK TV show, Lorraine.
"We couldn't have asked for Brooklyn to meet a more adorable, lovely lady. We are very happy. We love her. He's so happy," she added.
The star also insisted it's nice her son has found his soulmate during a time where "everything felt a little bit sad".
She said; "It’s nice with everything that has gone on this year that Brooklyn has found his soulmate and the lady he wants to spend the rest of his life with, during this time there’s been so much uncertainty and that everything felt a little bit sad. So we are very happy and very excited. What will I wear?"