Credit: Ivan S. Harris

Fist pumping, anyone?

On Saturday, Jersey Shore star Mike "The Situation" Sorrentino hosted the "Guido & Guidette Ball" at San Diego hot spot Stingaree.

He spent most of the night mingling with the crowd and dancing in one of the club's go-go cages.

"There was lots of ab flashing - in the DJ booth, up on the rooftop, in the go-go cage," a clubgoer tells

In The Situation's typical style, "he was surrounded by a crowd of girls the whole night, getting numbers and flirting," the witness says.

After downing vodka cocktails in the Stingaree's VIP area, he closed down the club around 2 a.m.

But the party didn't end there.

Says the clubgoer, "There was one blonde who he was with most of the time that I know left in the Stingaree limo with him at the end of the night!"

Still no official word on whether a second season of the MTV hit show is in store, but castmate Vinny Guadagnino recently said "they want us to do another season."