u/Darknessbunny03

I have been in the bdsm community since I was younger and kinda know my way around. (I'm 22 now and started at 14) And I know some things between a Dom and sub are intimate but I was wandering, when a Dom tells his sub to open their mouth and stick out of the tongue out, and the Dom presses their fingers on the subs tongue, what significance does that have or, what does it mean intimacy wise.?