Healthy or not depends on whether it is protected.

I have not orgasmed from cunnilingus and have not received much of it, unfortunately, so I can only comment on fellatios.

So,

- unprotected fellatio can lead to spreading communicable diseases
- if there are no diseases, unprotected fellatio is healthy in that the woman consumes a very high protein food (or drink...I guess given the texture, it is in-between). That just came to my mind. Upon doing a quick web search, I got more: "semen already contains 150 mg of protein, 11 mg of carbohydrates, 6 mg fat, 3 mg cholesterol, 7% US RDA potassium and 3$ US RDA copper and zinc. " from wiki answers. But even with that addition, the main value is still from protein.
- further, if there are no diseases, unprotected fellatio within a couple about to conceive a child leads to a better immune compatibility between the mother and her fetus
Study: Oral sex makes pregnancies safer, more successful - by Terrence Aym - Helium
- semen has a delectable taste. My first boyfriend's semen (we had oral interactions only, no intercourse) tasted a bit like the best SF sourdough bread. Very intense and pleasant taste. It varies from person to person, though, but still, it is pleasant, and it is pleasant even for me, while I in general dislike the taste of salty foods (to an extreme degree). So I assume that for people who do not dislike the taste of salty foods quite as much, it would taste even better.

"give pleasure to giving end " - in my case, pleasure to the giving end can be beyond any way of describing it with words. Well, let me try... it will be in the past tense because I do not do that anymore - not done it since 2009

1. it altered my state of consciousness without drugs
2. I was able to experience what I called an "empathetic orgasm" - be that much a part of the man's experience
3. and, it was just pleasurable beyond belief. Both the process and the result. beyond belief, and I liked prolonging the experience.

OK, so why do I not do it anymore if it was so good? Because I have to be passionately in love with the man to do all of that. Otherwise I am just not motivated. I cannot do it in a mechanistic fashion. I know some other women can, and I could, just a few times, in my youth, on a couple of guys who were just good friends and I did it for fun without having raw passion, but right now, I cannot. The guy I am currently with is very nice, and extra nice, and a great addition to my life and just all sorts of good things about him, but I am not passionately in love with him. So, I can do the missionary position intercourse with him fine, but not the various high energy expenditure acts, no. In addition, the relationship is not exclusive so I would need to do it in a protected way, and I have never wanted to have rubber in my mouth. But even that obstacle could be overcome if I had enough passion. Without boundless raw passion, I cannot even begin to think about fellatios, but with the boundless raw passion present, fellatios are my favorite part of sex. That much about the pleasure of the giver.

I am hoping that the love and passion for the current guy will eventually come to being and then I will fellate him. Funny... the software that spell-suggests suggested to me that I wanted to type "fell ate" him instead.