08/04/2011 03:04 pm ET Updated Oct 04, 2011

Neil Patrick Harris Boards Elton John's Yacht With Twins In Tow (PHOTOS)

This is quite the playdate!

Neil Patrick Harris and partner, David Burtka, took their adorable, life vest-clad twins, Gideon and Harper, for a playdate on the high seas with some very famous company -- Elton John, his partner David Furnish and their son, Zachary.

While the babies are still a little too young for any actual playing, it was a nice outing for their parents. Bauer Griffin snapped photos of NPH and Burtka boarding Elton's yacht in St. Tropez, with the babies in tow.

Here are a couple shots of the ridiculously cute kids and their dads, go here for some more!