Good for you man. I always planned on saving myself, but things don't always go as planned. So big ups to you for being yourself.
Now to answer the question from OP. There is no set number. I'm at two, I could easily be way higher, but I'm not. I cared a lot about both girls. So to me, a girl that banged 25 dudes may seem too high. If I had sex with 40 girls, 25 would seem slim. It's really where both people are in their sexual relationships. A lot of people brought up experience. I've been in this relationship for 19 months now, and sex is very prevalent in it. So just because my number is very low, I promise I have plenty of experience.