"In this day and age, more people recognize sex as an important component of a successful relationship, not something to be ashamed of," says Justin Lehmiller, PhD, a social psychologist at Harvard who studies relationships and sexuality. "For those people, it's important to establish sexual compatibility early on, and having sex on the first date may be the right move for them."
Ultimately, getting nekkid with some dude you've known for only 2.5 hours may not be your thing, and that's fine too. The point is that hard-and-fast dating rules (like "No sex till date three") and old-fashioned expressions like the vile "Why buy the cow when you can get the milk for free?" are antiquated and harmful—they produce all this unnecessary anxiety and shame about something normal and natural: dating and sex.
What do you think, out sex on the first date?
