J Lo's 'Boy Next Door' co-star says her on-screen lip service is over and above

Jennifer Lopez's 'Boy Next Door' co-star, Ryan Guzman, has recently expressed that American actress' lip service is over and above.

The 27-year-old said that 'I'm Into You' artist was by far the best kiss he had on screen, TMZ.com reported.

However, Lopez ranked Guzman on number 2 during a recent interview putting George Clooney on the top.