A blesser is a term that is often used in South Africa and is synonymous with the words "sponsor" or "sugar daddy. This type of relationship is very materialistic were the young woman in question is mainly interested in monetary gain or an exposure to a luxurious lifestyle she otherwise couldn't afford with her own coins.
The word "blessee" is also frequently used in South Africa and carries the same meaning with words such as "sugar baby" or a "kept woman." And it goes without saying that sponsors are the ones who come out-of-pocket to finance the lifestyle of blessees.