I lost my virginity to an SP who was a 18 yo McGill student in 2012 when I was 23. I do not regret it at all, and definitely to this day still one of the more memorable experiences I've had with an SP and I think I got very lucky because of the dozen SP's I've been with the last 9 years, I've only landed 1 other true college girl.
Feel free to reach out in private to me if anyone wants advice or anything on their first time.