Be it a couple or single person approaching someone for the first time, it is person and situation specific. While one may respond to innuendos another may respond to a blunt 'wanna fuck?' To say that this first approach is implying partnership is rather premature, a first date is still a first date! It is a starting point and up to each individual person to express their needs and wants as well as what will or will not work for them. Lots of discussion in the start may save a load of hurt and heartache later.
Moose, it's fantastic that you say you have already had a 3-4 hour open discussion! Keep it up, open honest talk is a great thing!