Tristan Thompson proud to be 'creating this angel' with pregnant Khloe Kardashian

Tristan Thompson said, "Thank you for allowing me to be a part of your journey."

In the photos' comments, Thompson, 26, thanked Kardashian, 33, for allowing him "to be a part of your journey in life and allowing [me] to share this moment with you this is something [I’ll] always cherish. Girl you look better now.”

He wrote that "entering your life that day at the Bel Air Hotel" was "one of the best moments of my life."

"I’m soo happy to be on this journey together with you and creating this angel from the man above,” Thompson continued. “Every day I give thanks to him for bringing us together. I love you soo much and I know our little angel feels the love we share together and will know that mommy and daddy loves them unconditional and forever and ever amen."

Thompson concluded by thanking fellow NBA player, Brandon Jennings, "for bringing this King and Queen together."

The two were first linked publicly last year.

Kardashian opened up about her relationship with the NBA player earlier this year. She told Evening Standard magazine in April 2017 that she's "never been in this type of love" and would "love to have a family" with Thompson.

"He [already] is a father, and I know for a fact that he would be an impeccable father," she said, referring to Thompson's son with ex Jordan Craig, who just turned 1.

"I definitely want to be a mom. But I don’t put the pressure on it. It’s not like, 'The clock is ticking,'" she continued. "I feel in my soul it will happen."