More pics were posted here
Rob is on the left
Kristen Stewart and Robert Pattinson helped a lucky New Jersey couple celebrate their big day this weekend.
"They stuck to each other's side all night," an attendee tells PEOPLE of Stewart, 22, and Pattinson, 26, who partied with guests until dawn and were spotted walking hand-in-hand during the celebration.
And the bride wasn't the only one (likely) wearing something borrowed. Before heading to the wedding, Stewart realized she forgot her dress. The solution? The Twilight actress strapped on a short, black Zac Posen cocktail dress from the groom's sister's closet (that matched her black Christian Louboutin shoes just fine). By the end of cocktail hour, however, she was back in her own wardrobe – jeans, a black tank top and a blazer – as she mingled with fellow guests.
Although Stewart didn't show off the moves she put on display during her Twilight wedding, a date-less Efron, 24, tried his hand at the hora, a traditional Jewish dance, before hanging out with mainly male partygoers for the evening. And Pattinson got in the groove manning the deejay's laptop for a bit.
After spending the night at the groom's house, Stewart headed to Paris for a photo shoot and Pattinson flew back to Los Angeles. Efron kicked back by the pool Sunday until after dinner.