That river in Egypt

"Hands behind your back dear"
He wasn't really thinking, he just let her do whatever it was she was doing. She walked behind him and pulled his wrists back, holding them together. She placed the cuffs on and tightened them around each wrist. Not too tight but enough to make sure they weren't coming off.
"That's it, good boy. How about you lie down for me?"
She helped him down, but even still he sort of fell onto his back once he couldn't crouch any lower. He was lying on his back with his arms cuffed underneath him, right on the edge of the blanket. He was exactly how she wanted him. Well, almost.
"How do they feel?"
"Uhnhmnfine"
"Are they nice and comfortable?"
"Notreally, Ican't move"
"So you can't get free?"
"Uhhhhhhhhhhno"
"Very good hehe"