Jennifer Love Hewitt and Jamie Kennedy. (WENN.COM file photo)

Jennifer Love Hewitt insists there is "no truth" to reports she is engaged to comedian Jamie Kennedy.

The pair were reportedly set to walk down the aisle after Kennedy, 39, pulled his girlfriend, 30, up onstage during his comedy act in a California club on Saturday.

But a spokesperson for Hewitt insists the pair are not engaged, telling Usmagazine.com, "There is no truth to the report."

Hewitt has been dating her Ghost Whisperer co-star since December (08), after calling off her marriage to fiance Ross McCall.