Virginity and older guy

Sooooo I had sex for the first time last week. I’m 21 and the guy was older than me, 32. We’re not in a relationship and didn’t really know each other very well but we’ve seen each other locally in the neighbourhood multiple times. Now the sex was really good and he had no qualms about me being a virgin. it’s never bothered me personally being a virgin at 21, I’ve always thought society adds way to much weight to the word. So this isn’t really a big deal to me other than we both found each attractive and had really great sex!

So naturally I told my twin sister what happened yesterday and whilst she’s hasn’t said it explicitly, i feel like she thinks I should have waited to be in a relationship and that it’s not something I should be happy about because he was a stranger and way older than me. I wasn’t feeling any second guessing/regret until we spoke about it. Should I be ashamed?? Is it bad that I lost my virginity to a guy older than me??