Ashlee SimpsonJessica Simpson’s high profile marriage and separation from husband Nick Lachey has made her little sister Ashlee wary of tying the knot.

Jessica and Nick married when Jessica was 22 but 21 year old Ashlee has no plans to wed boyfriend Braxton Olita.

“Marriage is definitely not on my mind,” she’s told Teen People magazine. But that’s not to say she doesn’t love Braxton:

“Olita’s the yin to my yang. People call him my little Buddha.”

“When he comes around, everything changes… I’m more peaceful and chilled out. I honestly couldn’t be more content. We live day-to-day.”

But she doesn’t plan to walk down the aisle with him in the near future: “there’s a lot of growing up you do in your 20s, and I definitely want to wait until my late 20s or 30s or whenever the time is right.”