I dream about sunbathing nude on a beach. I wake up to a boa constrictor latching onto the head of my dick, thinking it's a critter. I don't have time to react before it coils around my johnson, trying to squeeze the life out of it. I'm hard as a rock by this time, of course. Then, as the boa starts to swallow me whole, digging its fangs in as it inches me down its throat I climax right into it's stomach. In my little fantasy, the act of releasing in its mouth causes it to detach from me and slither away, embarrassed that it mistook me for a meal.