The Brazilian model posted an image of herself to her Instagram account on Thursday, tagging a Victoria's Secret account in the post and using the hashtags #vspink, #campaign and #diversity.
A post shared by Valentina Sampaio (@valentts) on Aug 1, 2019 at 8:10am PDT
Days later, the model posted a video of herself with the caption "Never stop dreaming genteee" and hashtags including #staytuned, #vspink and #diversity.
Many took the posts to mean Sampaio had been hired by the lingerie brand, making her the first openly transgender model to model for the firm.
A post shared by Valentina Sampaio (@valentts) on Aug 2, 2019 at 11:07am PDT
Sampaio's agent, Erio Zanon, confirmed to CNN on Monday that Sampaio had been hired by Victoria's Secret for a campaign, to be released in mid-August, for its PINK line.
CNN has contacted Victoria's Secret for comment.
Victoria's Secret model Lais Ribeiro, a fellow Brazilian, tweeted: "First transgender to shoot with Vs! This make me so happy!"
Victoria's Secret has previously come under fire for its stance on the transgender community.
In 2018, Ed Razek, the chief marketing officer for Victoria's Secret's parent company, sparked controversy with his comments in an interview with Vogue, saying he didn't think the brand should include "transsexuals" in its show.
"Why not? Because the show is a fantasy," Razek said. "It's a 42-minute entertainment special. That's what it is."
The term "transsexuals" is considered outdated and offensive to many in the LGBTQ community.
Razek later apologized for his comments in a statement published on the Victoria's Secret Twitter account, writing: "My remark regarding the inclusion of transgender models in the Victoria's Secret Fashion show came across as insensitive. I apologize."
"To be clear, we would absolutely cast a transgender model for the show."