Nick Lachey on Having Kids With Vanessa: “The Pressure Is On!”

 Rick Diamond/

Little Lacheys!

Nick Lachey and fiancee Vanessa Minnillo haven't said "I do" quite yet, but that doesn't mean the groom-to-be isn't already thinking about fatherhood.

"I'd like to be a dad sooner than later," the 37-year-old told Parade magazine. "I'm getting up there. I've gotta catch up with my brother. [Drew's] got two and I've got zero, so the pressure is on me!"

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Lachey has volunteered with Big Brothers Big Sisters since 2004. He said his time as a mentor for the organization has helped prepare him for fatherhood.

"I'm assuming fatherhood is going to be a hundred times more intense than being a Big Brother, but watching a life develop in front of you is a bit of a parallel," he said. "I'm certainly looking forward to it."

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"I'm at a point in my life where I'm ready to start another chapter. Having kids is a big part of that. I'm excited for what comes next," he said. "Life is a journey, and I'm certainly ready to close this chapter and move on to the next."

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After dating for four years, Lachey proposed to Minnillo, 30, in November 2010. (Lachey was famously married to Jessica Simpson from 2002 to 2006; Simpson announced her engagement to ex-NFL star Eric Johnson only days after Lachey shared his good news.)

But before he meets Minnillo at the altar, Lachey needs a bachelor party! "I'm fearful!" he admitted of the as-yet unplanned bash. "But we're going to have a great time. At this point in life you don't get to see the boys as much as you used to and a lot of the friends from college and stuff have moved on and have their own families. This is a chance for us all to get together and tie one on and have some fun again. We're all looking forward to it." 

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