The couple also cuddled and "looked beyond happy together" at Tom Hanks's son Colin's wedding

Credit: Bauer-Griffin

Reese Witherspoon and Jim Toth went from casual to formal on a busy Mother’s Day weekend – taking in Reese’s son Deacon’s soccer game in L.A. on Saturday before celebrating Tom Hanks’s son’s wedding that evening.

“Reese can’t stop gushing about how special Jim makes her feel and how great it is to have him around her kids,” says a source. And their body language showed it!

The couple, in baseball hats and sunglasses, were all smiles – the norm in their relationship, evidently – as they cheered on Deacon, 6, and his Panthers at the Recreation Center in Brentwood, Calif. And, according to an onlooker, after the game, “Deacon came running over to Reese and Jim and they both looked very proud.”

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Later, they upgraded to wedding attire and joined Tom Hanks, Rita Wilson and their 150 guests for Colin Hanks’s nuptials with publicist Samantha Bryant on the roof of the London Hotel in West Hollywood.

According to an eyewitness, “Even during the ceremony, Reese and Jim could barely keep their hands off each other. Jim had his arm around Reese and Reese kept leaning in to kiss him. … The couple looked beyond happy together.”

Witherspoon and Toth, who’ve been linked since February, have been making a habit of weekend celebrations – having also helped Jennifer Garner ring in her 38th birthday last month.