I recently re-read Keira Andrew's gay Amish series. While I don't usually gravitate toward books with "innocents", I love that series. I love it so much. I would NOT compare the Amish to the abhorrent cult portrayed here, but this book has a similar feel. It was a delight to read about Caleb and Josh discovering "the world"...and each other ;) This was also hotter than I thought it would be - and I loved every second of it. Underlying the dirty talk and domination was a wonderful tenderness. It was very well-done. 
 I'm a big fan of "friends-to-lovers". That being said, I felt that the ILYs came too soon. OF COURSE they love each other. They had been together their whole lives. Caleb was desperate to protect and care for Josh (which was squee-worthy). But I personally would have preferred if SB had waited to cross the "in love" bridge. I also wanted to smack Caleb when he pulled an incredibly bone-headed move near the end. But it was a somewhat natural thought for him to have and I just loved the way that Josh helped him come to his senses ;) 
 I know that there is another book in the series - I think is being re-edited and reformatted? I will definitely be adding it to my queue!