And why did the fallen sons of God not clear out a floor or two of the ark, and haul in a bunch of girls and women to keep the sex-party going?
The physics have been worked out, and the floodwaters must have benn quite hot, fallen from that hights, so, may be they got stuck in a hot tub-like scene, after all rain was a novelty, hot rain--add sex, --why bother the goats?