Sure it is. People often give out of the senses of empathy and compassion. Empathy, of course, involves our feeling discomfort and a need to help when we see others in pain or need. The simple instinct to ease that other person's discomfort is nothing but pure empathy. They see someone in need of help or in need of something, imagine how they'd feel if if were they, and just want to ease the other person's discomfort, pain, suffering, etc. The urge to give or help is absolutely, and completely, separate from wanting to get something in return.
As a mother, the only thing I ever expected back from my children was respect (because I showed them respect, believe respecting others is important, and believed I had a right to their respect as well). I gave in an attempt to make them happy, keep them healthy, make their life as good as possible, ease the fears, protect them, etc. etc. - but never to get anything (not even "immortality") back. As it turns out, all three of my (now grown) children have been the absolute joys of my life; and having them in my life has brought things to it for which there are no words that are adequate enough to express. So, I did end up getting so much back from what I gave. That was never my motivation, though, All I ever cared about was what I could/would bring to them. That's how a whole lot of mothers are. :)
The best form of love (and the most perfect form of it) is love that is about what we can bring to the other person - not about what we get in return.