The easy way out is to name the boat "After You" == so you can snuggle
up at the appropriate moment, and tell any woman "I named my boat after you"

BUT an even better idea follows

a guy at my marina took off the name on the transom, and put his
girlfriends name on a lifering he hangs on the stern pulpit. I asked
him (privately) just how many rings he had, and he just smiled.

Doug Kanter wrote:
Isn't it considered good luck to name it after your first, or current
girlfriend, but never your wife? :-)