I really like the idea of slaves swallowing their own cum. I bend him over than put a funnel in his mouth and give him a good rimjob and some nipple torment and whippings until he cums into the funnel which directs his cum directly into his mouth. And than he has to swallow all of it.
I like thoose kind of games :-)
(I was disapointed because a little bit of his cum missed the funnel so i ripped of his nipple clamps at the end)

Enjoy yourself!
Misses