I'm really loving seeing Stephen struggle with his new found ability to desire others, as opposed to merely being an object of desire.

Excellent way of putting it.

I think Stephen in canon is primarily sexually attracted to men, but the issue gets confused by the way sex and power and love are all tangled up in his head. Women in the right positions can trip his "must be a good boy and maybe they will love me" circuit, similar to the way O'Reilly does.

I don't know if this will have a sequel, but if it does, I'll see about working in some flashbacks. At the moment, Stephen's past is still very much alive in his present anyway.

Tad and Amy definitely care about him, and will look out for him as best they can!

Anyone would struggle with an unexpected pregnancy, but Olivia (in this 'verse and IRL) is the focus of a whole clusterf@#k of body-image and sexuality issues that don't make it any easier. As for how she'll deal with it -- well, you'll see...