ET's Kevin Frazier gets an exclusive interview with hot couple Kim Kardashian and Reggie Bush -- and they open up about the engagement rumors!

"[I'm] feeling a little bit of pressure," the New Orleans Saints running back tells Kevin about making the perfect proposal to the "Keeping Up With The Kardashians" reality star/former "Dancing with the Stars" contender.

"You are?" Kim asks him, adding with a laugh, "I'm not pressuring you!"

"Not to ask the question -- I'm saying pressure to make it perfect," explains Reggie. "We've still got time."

"He's trying to make it a good surprise," says Kim.

Kevin was with the pair as they previewed the new Nintendo Wii game, "Rayman Raving Rabbids TV Party." They showed obvious chemistry, and Kevin hit them up one step further with the marriage/start a family question.

"We both are so busy right now in our lives that we're both trying to get through the season, and whenever it happens it happens," says Kim. "I'm really in no rush, he's in no rush -- like, this is it, so whenever it happens it happens."

"We'll know when the time's right," confirms Reggie. "We're not planning according to what other people think or what they think we should do, or when they think it should happen. It'll happen, and we'll both know it's the right time, and when it does, we'll make it happen."

Watch ET to see Kim and Reggie as you've never seen them before!