Seiyuu Minori Chihara, best known for playing Nagato, has admitted to sleeping with her otouto.
From her own blog, speaking about a trip to her family’s home:
"What I was personally most pleased about this time was getting to sleep with my little brother. We talked about all kinds of things! ♥ ♥ ♥"
She relates other little brother related episodes frequently – “As ever I just love my little brother,” “Of course, the wallpaper on my mobile is of my little brother,” “I got to spend the whole day with him – delightful,” “Today was my little brother’s birthday!” etc.
Naturally 2ch is unanimous in enviously considering this boy the luckiest alive.