I'm trying to find 2 tags, 1 isn't well used despite the high number of pictures with it.

~#1 Character having a tube on their cock means of milking machine, self feeding off screen or to self, etc.
Good example of something not being tagged; https://e621.net/post/show/73621/all_fours-anthro-artica_sparkle-ball_gag-bdsm-blue
I see this kinda kink all the time, and it doesn't have a tag, theres a tag called "tube' but is seldom used and isn't kink specific, and use for tube is far to wide to simply always be self-impregnation.

~#2 Don't have a good example because of how hard it is to tag to find, Is Muzzle fucking, act of penetration with the muzzle, anal or vaginal etc, Not Vore, though may lead to Various Vores.

Would appreciate some direction of clarification on these 2.

Number two is muzzle_fuck, and the first one seems to be tagged as... cum_circulation?

Alright that helps alot with muzzle fuck again a tag I haven't seen used enough;

and the cum_circulation while definatetly helps that along with self-impregnation. Wish I knew more of them that involved things like that.