I've received anal sex many times (the first time was when I was 24). Even before that, I wasn't a virgin (having had sex with a young lady when we were 18)...but, had I been a virgin prior to receiving anal sex, I would no longer be a virgin after the fact.
No anal either giving or receiving. Never been a thing with either of my ex's. Dunno what it's like. My dick isn't suited to being a rear-entry tool of any kind (vajajay or anal).