thebrutalizer: I wonder how many pounds of force the ropes would be able to sustain before slipping off the cunts tits. That, my friends, is the kind of science we should invest in!

thebrutalizer: I wonder how many pounds of force the ropes would be able to sustain before slipping off the cunts tits. That, my friends, is the kind of science we should invest in!

tags: Black Sub here :-),

from: https://www.tumblr.com/blog/view/subbryan6in/161282409192