Just last week the hunkster hit the Sony Cierge event at L.A.'s SLS hotel with his brother Brandon, but shortly before the shindig ended, along came the 90210 beauty and her ubiquitous nonfamous sister Angel.
Lutz and McCord were only spotted giving each other pecks on the cheek and even asked event organizers not to have their photo taken together, a source reports.
No biggie, because we got the chance to talk to Lutz a couple of days later. Ya gotta come back here tomorrow to find out what he had to tell us about liking Eclipse more than New Moon, his drooled-over muscles and trying to have a private life.
Meanwhile, keep reading for more celeb sightings, like Taylor Swift ...
CLOTHES CALL: Taylor Swift, trying on shoes while shopping with her mom in the Brass Plum section of Nordstom, at L.A.'s Grove shopping mall (the same dayKate Gosselin was there).
HOT PROPERTY: Leonardo DiCaprio, checking out penthouses at downtown L.A.'s luxury property Evo while shooting scenes for his upcoming film Oliver's Arrow.
HAIR CARE: Ashley Greene, getting hair extensions by stylist Essly Powell at L.A.'s the Parlour on 3rd.
CATCHING UP: Demi Moore, chatting with a pal over dinner at new Hollywood hot spot East.
ROYAL TREATMENT: Queen Latifah, receiving a luxury manicure and pedicure with a guest, at L.A.'s Recess Organic Nail Spa.
PARTY TIME: DWTS' Maksim Chmerkovskiy and Tony Dovolani, enjoying a guy's night out in the VIP section at the Verizon Wireless Samsung Rogue event at MyHouse in Hollywood.
SEPARATE, BUT EQUAL: Jeremy Piven, celebrating last night at Chicago’s Cuvée, where his television costar, Kevin Dillon, had partied the previous night.
JERSEY GIRL: Dancing With the Stars pro Kym Johnson, taking her mom to see Jersey Boys at the Palazzo Resort Hotel Casino in Las Vegas.
KATY WOULD BE PROUD: Russell Brand, wearing an American Apparel Legalize Gay T-shirt while working out at Crunch in West Hollywood.
KID FRIENDLY: Disney’s The Suite Life stars Dylan and Cole Sprouse, having dinner at First Food & Bar in Las Vegas.
—Reporting by Dahvi Shira
For more of your favorite stars living it up, check out our Party Pics: Hollywood photo gallery.