Both in real world and online.

I think virgins are shamed more. But that's more of a quiet shaming. The people who slut shame are louder because the subject of sluts gets brought up more and they have to defend their position.

On the other hand someone who virgin shames rarely if ever has to defend their position. Rarely will the tired old tropes of "let the past be the past" be brought up when it comes to the topic of virginity. That enables the shaming to go on unchecked.