Nice pics! Did you also do breath play? With only his mouth exposed, it would have been ever so tempting to not just lay a piece of plastic over that opening, so that as he breathes in he is restricted breathing, but as he breathes out, he is able to exhale..... an ever increasing rate of mild smothering *lets the mind run over the possibilities of having a sub in such a situation*

Oh... Uh.... looks like you had lots of fun! I kinda got carried away there.

Hope you continue to have fun with him!

V/R
ID