Vanessa Hudgens' 'Grease' Co-Star Carlos PenaVega Kissed Her Neck by Mistake!

Vanessa Hudgens rocks a cute “no coffee no workee” sweatshirt while doing some retail therapy with her sister Stella on Monday afternoon (January 25) in Studio City, Calif.

The 27-year-old actress’ Grease co-star Carlos PenaVega recently talked about their kissing scene.

“We’re like running the show through in our rehearsal space…I was like, ‘Oh my gosh! We have to do the whole kissing scene’…so then it comes to our scene, and her and I are, like, sitting there,” Carlos told People. “I started to go in, and I just didn’t feel right. So I was like, ‘Okay, cool, so we’re not doing this.’”

He added, “So I just kissed her neck.” LOL!

20+ pics inside of Vanessa and Stella Hudgens shopping together…