So anything that happened in public, say in a car or on a front porch, was first base, anything that happened inside one’s house, on one’s couch/kitchen counter/dining-room floor, was second, move into the bedroom and you’re at third, sleep over and that’s a home run. The system is meaningful, I think, because instead of giving away parts of your body like oranges at mile markers in a marathon, intimacy progresses based on how far into your house and life you want to let your partner get. That seemed like an important distinction.