Dressed in a demure blue two-piece with nude wedges, Pippa was spotted arriving in SW19 to watch the first day of play on Monday morning (24 June).
Pippa and James were later snapped sharing laughs on Centre Court with fellow guest Princess Michael of Kent, as they watched Roger Federer defeat Victor Hanescu 6-3 6-2 6-0.
If Pippa and James stick around for the whole day, they'll also get to watch Maria Sharapova in action, followed by Andy Murray, who will kick off his Wimbledon campaign with a match against Benjamin Becker.
Meanwhile, it's being claimed today in the Daily Star that the pregnant Duchess of Cambridge could become an official ambassador for Wimbledon next year, with tennis chiefs hoping she'll take over trophy presentation duties from the Duke of Kent.
Earlier this year it was confirmed Kate had accepted honorary membership at Wimbledon, so she'll be able to pick up a racquet and hit the courts any time she likes.
Kate's known as a keen tennis player - what's the betting the new little prince/princess will follow in her footsteps?