The Keeping Up with the Kardashians star, 32, and the Cavaliers player, 26, have been dating since last fall and have “talked about both a wedding and a baby,” a source tells PEOPLE exclusively.
Over the last few years, Kardashian has been a doting aunt to her nieces and nephews, and now “she really wants a baby,” says the source. “She hopes it will happen soon.”
The star is a familiar face at Thompson’s games in Cleveland and “is very happy and positive about her future” with her new boyfriend, adds the source. “She is absolutely hoping for an engagement.”
After a brief scare, Kardashian was told she would have no problems getting pregnant in the future and revealed she’s stopped taking birth control. “Tristan and I definitely talk about starting a family,” Kardashian told the cameras. “He wants to have about five or six kids with me and that’s lovely. We could start at one and we could grow from there.”
FROM COINAGE: The Most Expensive TV Shows of All Time
Thompson is already a father to 6-month-old son Prince (with ex-girlfriend Jordan Craig), and “Khloé has spent some time with his baby,” says the source. “She is very attracted to Tristan as a dad, too.”
On Saturday, the couple was spotted leaving a dinner at Nobu in Malibu. The couple happily chatted and hugged friends as they said their goodbyes.
“Khloé looked great,” an onlooker tells PEOPLE of the date night. “She was in the best mood. They had a huge dinner and looked like they ordered everything off the menu. Tristan and Khloé were kissing and seemed very happy.”