Lo Bosworth stephanie Pratt the hills blonde tank top cardigan four seasons hotel

Spencer Pratt may be talking mad smack about Lo Bosworth, but that doesn't seem to be affecting his sister's feelings about her Hills co-star!

Yesterday we spotted Stephanie Pratt and Lo shooting at the Four Seasons in Beverly Hills, and even though Steph had something that looked suspiciously like a script (gasp!), she appeared to be quite chummy with Lo during a break from filming. Wonder what Steph thinks of her big brother losing his mind via the world wide web? She hasn't tweeted anything about her bro and his crazy Twitter rant, so we're dying to find out!

Lo Bosworth stephanie Pratt the hills blonde tank top cardigan four seasons hotel