I think for sharing, it doesn't have to be an established character. Take Dash, for example.. she came out of no where, then bam sex scene. Easy. Why does it have to be different for a sharing scene? I personally think it's more exciting when it's a stranger. If Brit's going to be the only one with that kind of content, I'd imagine it's going to be the dudes we see in Lucien's 'found footage'. One of them looked like Gabby's father as another user pointed out
I guess we'll see eventually one way or the other!