They say three's a crowd and that certainly seems to be the case when it comes to Jennifer Aniston, John Mayer...and her mutt Norman.

The couple enjoyed some PDA-packed dates in New York last week but Jen is said to have left her beloved pooches back home in L.A. – at John's insistence.

“John hates Jen’s dogs,” a source tells the New York Daily News. “John also hated [ex girlfriend] Jessica [Simpson’s] dog Daisy."

Jen’s rep calls the claims “ridiculous and untrue” but we wonder if John has managed to sit through Jen's dog-based comedy Marley & Me?

See Jen and John keeping each other warm in New York below