LimoLiner has a bonus for pet parents this Holiday season — actually, make that two: Not only is the aptly named luxury bus service between Boston and New York waiving its pet fee throughout December, but instead of allowing only one dog per passenger, travelers may bring along two.

This is a gift that keeps on giving because a portion of the proceeds from every (human) passenger ticket booked with a waived pet fare will be donated to MSPCA-Angell.

LimoLiner, which has four daily departures to and from Back Bay and Midtown Manhattan, all of which stop in Framingham, went pet-friendly a year ago, allowing small dogs and cats on designated trips. Service dogs are allowed on all trips. For non-service dogs, LimoLiner has a 25-pound weight limit and, similar to air travel, animals must remain in pet-carriers that fit underneath a seat (dimensions are 8 inches by 10 inches by 16 inches). LimoLiner does not stop during the journey, so there are no bathroom breaks for pets. Also, there is a limit of three animals total allowed on any trip, booked on a first-come, first-served basis.

Dog passengers receive Paw Street Barkery biscuits and, as with every LimoLiner trip, humans enjoy complimentary food and drink service, including hot meals and wine (after 6 p.m.), all served by an onboard attendant. Wi-Fi, satellite TV and radio, dedicated work spaces, reclining seats, and movies are also available.

One-way fares: Humans, $89 and $99, pets $39. 844-405-4637. www.limoliner.com

LINDA CLARKE