Some of y'alls egos are hilarious. There's been tons and tons of scientific research done on this, the vast overwhelming majority of women do NOT cum from penetration alone. If you think all or most of yours have, they were LYING to you. They all also love to lie about orgasming...it's like none of you actually interact with women lol. Or read any literature for that matter.
Not sure how some of you are getting laid that much, but I've been in gyms my whole life and only on a handful of occasions even wondered if females were thinking about me naked, and literally never capitalized on it. The gym is my sacred space, I'm not LOOKING for trouble when I'm there.