The third humiliating scenario is a standard practice in our relationship with variations on how it is carried out. Full disclosure here, I am what my Mistress calls a "full service slut". What she means by that is I service her, meaning her pussy or, my "home" in every way. When she demands it of me, I take her golden nectar in and filter it through my body so that she literally runs through me. We are safe about it and she does not have me do this every day but it is a regular occurrence. The only part of it that is a daily routine is that she no longer uses toilet paper when she pees because she has my non-abrasive tongue at her disposal to wipe her clean and much more thoroughly than TP can. The variations though come in the creative ways in which Mistress carries out the more intimate activities. Sometimes she just orders me to my knees and feeds it to me directly and I must keep up and not let a single drop escape. If she's in the mood to make me do it in fear of punishment she will position me on a carpeted area or lay me down on the bed and straddle me. If any carpet or bedding is wet at all when finished, I am punished.
Other times, like at a restaurant for instance, she will fill one of our empty beer glasses in the bathroom, bring it back out, place it on the table in the open and make me drink it right there while she enjoys a fresh beer and others can plainly see it (although they have no idea what's happening...hopefully!)
On occasion it will be my breakfast. After I make and serve her something delicious, she'll fill a bowl, place it on the floor next to her by her feet and have me lap it up on all fours like her puppy.
In more intimate moments, she will relieve herself into a baby bottle, lay me across her lap and feed it to me slowly while she watches tv or just watches as something that came out of her slowly disappears into me. It has become a very intimate part of our relationship and while I can't call it 'enjoyable' on one hand, it solidifies our connection and my devotion to her on the other hand. It's undoubtedly humbling at the very least that this has become such a normal part of life for me as a submissive.
When it really has become humiliating is when she makes me occasionally consume the golden nectar of her friends as an entertaining party activity or just to show her sexual control over me. These are much less enjoyable because it is not from my Mistress and therefore the intimacy and connectivity aspects are missing and it is simply a slutty sexual act where I am being used for mere entertainment.
In times of punishment or sometimes just when we're apart for a couple of days or more, she'll order me to recycle my own pee. You might think it's all the same but when it's your own, it's mentally a very different thing. I would put this below even that of her friends and it is not something I do happily in any way. Nonetheless, I am obedient to the one I have surrendered all my sexual self to.