you have to be with the right person (in my case she has to be smoking hot) or the desire can gone quickly and it would just seem gross.. when you see just how hard women get off on having their cum filled pussy eaten-round two never an issue for me... I am ready to hit it and it when she's that soaking wet it's awesome...
round three-well never happens.. I'm usually toast for a few hours (after 1&2)