Mistress April anal stretch training and sealing ass with tunnel and tap lid

My slvaes holes belongs to me. So I used my to train his ass with my brand new anal stretcher to get finally my bug fist into his ass. But it takes time. So in between I seal and lock his hole up with a tunnel that is closed with a tap lid. When ever he needs to go to the toilet, I can open his hole and of course close it. It's my hole !