Lo Bosworth claims she and Stephanie Pratt have been wrongfully accused of spreading rumors about Kristin Cavallari. Do YOU think she’s telling the truth?

Kristin Cavallari and Lo Bosworth are taking a page out of Lindsay Lohan’s handbook on how to start a war via Twitter. After the May 4 episode of The Hills, Kristin furiously tweeted her outrage at co-stars Lo and Stephanie Pratt for spreading rumors about her alleged illegal drug use.

“Manipulation is DISGUSTING. I hope ur Berkin bag was worth it. Lowest form of SCUM…” the 23-year-old reality star tweeted late Tuesday night.

Lo — always the mediator — was quick to defend herself, explaining, “Tonites episode-rumors about ppl on show do not really come from other cast members. Steph and I aren’t guilty-welcome to reality tv :/.”

Later, the 23-year-old added, “KCav knows who started the rumors, that person doesn’t exist in hills world, and we r unfort being blamed on tv in order to address a story.”

–Kirstin Benson

Get More of Juicy The Hills’ Gossip HERE!

1. Lauren Conrad is About to Make Her Return to the Small Screen – As A D-Lister!
2. EXCLUSIVE! Brody Jenner Will Have A Faux Love Triangle On ‘The Hills’! His Real GF – Avril Lavigne – Should Be Furious!

1. Heidi & Spencer Moving To Latin America!!
2. Sneak Peek Last Season Of The Hills!
3. Heidi Montag’s In SO Much Pain From Her 10 Plastic Surgeries! She Can’t Even Sleep, She Tweets!