Not too far at all! It's a natural progression and I'm sure you're all turned on hugely by it. Tell me,what will the sleeping arrangements be? I think the wife and her BBC bull should obviously have the main bed,whilst you sleep in the spare room. Is she going to be his woman for the duration? For example,when you're out and about will the wife be holding his hand,not yours etc?
Sounds like a fantastic time ahead,enjoy and I can't wait to hear how it all goes!