Reality star Kylie Jenner posts steamy nude throwback photos amid pregnancy rumors.

The "Keeping Up with the Kardashians" star recently posted a couple of exclusive old polaroids on her Instagram account via the Kylie Jenner app.

The shots, taken by her assistant Victoria Villarroel from a professional photoshoot, shows Jenner completely nude, save for a thin white sheet that covers strategic areas of her body. She was posing for photographer Brendan Forbes.

"I was going through some old photos from the past few years and found so many good Polaroids. I just had to share them exclusively with my app subscribers," she said in the original post.

The never-before seen photos are reminiscent of the time when the 20-year-old Jenner was all over social media, recording everything she does and giving more than daily updates via Snapchat.

It has been mostly quiet from Jenner's end in the past few months, starting when she was first rumored to be pregnant.

TMZ first broke the news in September, saying she was carrying her first child with 25-year-old boyfriend Travis Scott. According to the report, the couple has been telling each of their group of friends about the pregnancy and how it is going to change their lives.

From the usual racy photos from Jenner, she then switched to posting throwback photos on her social media. Either that or shots only showing her from the chest up.

Her style has also changed to loose-fitting shirts and sweaters, which fans think are aimed at trying to hide her growing baby bump.

In early November, rumors of an engagement sparked after Jenner posted a Snapchat video of her while driving to Kim Kardashian's baby shower, and sporting a huge diamond ring. Jenner also reportedly threw her own baby shower the day after, in an intimate pajama party at her Hidden Hills home in California.