Sydnee Busby had two goals for the Pirates, while single goals were contributed by Jordan Moore, Aileen Ortiz, Shelle Zito and Lupe Rodriguez.
Coast wasted no time to take control of things when Busby took a nice feed from Zito and buried the first shot of the match into the back of the net in the fourth minute.
The Pirates responded with a pair of goals shortly thereafter and the match was out of reach for the Lasers the rest of the afternoon.
Second-half goals by Zito and Rodriguez pushed the Pirates' lead up to 6-1 before Lefebvre's second goal of the contest closed out the scoring for the Lasers.
OCC goalkeeper Tara Tellez and IVC sophomore keeper Yesenia Pulido each had five saves.
Irvine Valley returns to action on Friday, hosting Santa Ana in a conference match at 3 p.m.