Yaoi and shounen ai

Have you heard these words.
Japanese genres for boys love.
Share your ideas

Yep, both refers to boylove as you mentioned, but these two falls under a genre which caters mainly to female audience drawn by mostly female artists. For gay people, there is another genre called "bara", which mostly depicts masculine gay characters in sexual and/or romantic relationship. You can check these websites to get a clear picture.
myreadingmanga.info
baramangaonline.com