Ashigara... him getting a boner while you asphyxiate the poor guy probably means he's about to meet ol' Grim.
It's more likely that some people have a thigh asphyxiation fetish. I keep seeing it around.
I've done what Myoukou-neesan said to do and I'm using my thighs to have the admiral fall asleep...Ah! Sisters.Nee-san...This counts as a lap pillow, right? Right...?