“She’s literally a most pleasing profound woman I’ve ever seen in my life,” shares a 36-year-old heiress.
Hilton adds that her sister hasn’t felt “sick” during this pregnancy, explaining, “She is a trooper, and we can’t wait for a baby.”
Want all a latest pregnancy and birth announcements, and luminary mom blogs? Click here to get those and some-more in a PEOPLE Babies newsletter.
A post common by Nicky Rothschild (@nickyhilton) on Oct 4, 2017 during 12:03pm PDT
RELATED VIDEO: James and Nicky Hilton Rothschild Expecting Second Child
The star is anticipating that she’ll be removing a nephew this time around — “I wish it’s a boy,” she says — Hilton Rothschild, 34, and her husband already share daughter Lily-Grace Victoria, 15 months.
Either way, though, Hilton says her small sister is prepared for baby No. 2. “She’s going to be amazing,” says Hilton, adding, “Lily-Grace indeed only started walking, so that was extraordinary to get a video a other day of that. We’ve been watchful for that.”
A post common by Nicky Rothschild (@nickyhilton) on Jul 30, 2017 during 5:16pm PDT
A post common by Nicky Rothschild (@nickyhilton) on Sep 28, 2017 during 7:03pm PDT
FROM PEN: Raising a Little Princess: All About Charlotte’s Amazing Childhood
Hilton has been dating The Leftovers star Chris Zylka given progressing this year. “I’ve never been happier,” she tells PEOPLE. “He’s my soulmate. we feel like he’s my best friend, and we’re unequivocally vehement for a destiny together.”
As for starting her possess family, a comparison sister teases, “We’ll see.”