I was On my way to acquire her artifact, when her dialogue started, two dragons flew in, trying to roast Lydia, shadowmere starts chasing one dragon, so I decide to call in odavhing, interesting battle, but has this happened to any of you in her shrine ?

Hmmm nope

I've had a single dragon attack me at her shrine.

I seem to get twins everywhere I go anymore.

Wasn't at the Shrine I don't think, but I've had two double-Dragon attacks. Epic stuff when it happens.

I had it happen to me, It was awsome!!! I was hiding around the shrine, left then right and left again.... I got them both but lost my follower in the mayhem.

I've had dual dragons a few times. It's pretty cool and I wish it would happen more but on the rare occasions it does happen it makes the fight a little more interesting.