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With the way these two are spending so much time together, it can't be long until the big day!

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A cool and casual Jessica Biel supported her fiancé Justin Timberlake at the 2012 Ryder Cup Captains & Celebrity Scramble at Medinah Country Golf Club in Illinois yesterday, where she watched her main man play golf alongside Bill Murray.

Clad in a leather jacket and sporting aviators, Jessica looked to be in great spirits despite the obvious heat.

Jessica has been Justin's number one fan lately, also making an appearance last Wednesday at the after party for the premiere of his film Trouble with the Curve in Los Angeles.

"Justin and I have a rule that we don't let a certain amount of time go by without seeing each other, but it doesn't always work. But from here on out, I want to participate in making smart choices for the relationship," Jessica recently told InStyle in their August issue. "The best thing I learned from [my parents] is that you have to put your relationship first. You need to make time for your partner. It's really easy to let that go by the wayside. It's easy to say, 'Hey, I'll see you later. I love you.' And you can't do that."

Related: Jessica's Eye-Roll Worthy 'Justin' Bling

Justin enjoyed a double-destination bachelor party last weekend, hitting up both Las Vegas and Cabo San Lucas, Mexico, where his pals had fun mooning the paparazzi.

But though the two have been much more public about their relationship since getting engaged in December, don't expect any reveals about the big day anytime soon.

Related: J.T. Has Double-Destination Bachelor Party

"I do know that it’s not going to be a great big to-do. This will be a very private moment for us, so we're going to keep it small and intimate," Jessica also told InStyle about the wedding. "The people I'd most like us to be like are Emily Blunt and John Krasinski – it seemed like one day they were engaged and the next they were married and nobody had known anything about it. And I did at the time think, 'Aha! That's the way to do it.'"