Since the postseason began, the Bay Shore girls lacrosse team has been celebrating its highs by gettin' down with funky little dance numbers, including an old heel-clicking jig made popular by the "House Party" movies.

Fitting, since the Dowling Sports Complex was the Marauders' house Sunday. And there certainly was reason to party after a thrilling, come-from-behind, 15-14 win over Farmingdale in double overtime to capture the Class A Long Island championship.

Kaitlyn Arnold's goal with 51 seconds left in the first overtime put Bay Shore ahead and its defense -- aided by Cynthia DelCore's forced turnover with 2:50 left -- made it hold up as the Marauders earned their first trip upstate since 2005.

"I was just thinking it could be over, and we don't want this season to end," said Arnold, who sprinted 70 yards, weaving through the defense, before scoring from close range. "We wanted to get to states so bad."

Bay Shore, which lost to Farmingdale in the 2010 Long Island Championship, advanced to the state semifinals on Friday at SUNY-Cortland.

The overtime dramatics were made possible by Caroline deLyra, who tied it at 13 with 3:08 left in regulation, after the Marauders had rallied from being down 13-9 with 8:40 remaining. She put them ahead at 14-13 at the start of the first overtime, but Kim Kolodny (four goals) tied it for Farmingdale with 1:59 to go. "Coming from down like we were, I think we had more momentum and fire in overtime," said deLyra, who scored five goals. "That's what won us the game."

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Arnold had four goals for Bay Shore (19-1). Carly Cox added two goals and two assists, and Kyra Harney had a goal and four assists. For Farmingdale (18-2), Nadine Hadnagy scored four goals and Colleen Reynolds had three.

Shianne Judson (three saves) replaced Bay Shore's Suffolk finals hero Dylan Teitelbaum (two saves) late in the first half, with Farmingdale up 8-5. "Dylan was fabulous the other night, but it's hard to maintain that intensity," Marauders coach John Pfeffer said. "Some shots got in that she would normally stop, and Shianne is a great backup. We went to her and she came through."

As Judson saved a bouncer at the final horn, Teitelbaum raced to embrace her.

And, as for the dancing . . . Sunday, the Marauders formed a Soul Train-like dance circle and one-by-one, players were called into the center to bust a move. For a team with only two seniors, they're quite fond of old-school rhythm. "We're Bay Shore and that's what we do," Harney, a sophomore, said. "Tradition never graduates."