It's been a pattern of Obama's dating back to his college years at least.
He joined a gay bath club when at Occidental in California, where he received medicore and poor grades, before being accepted into the prestigious Columbia University in New York.
When he was at Occidental Liberal Arts Community College in CA, he was seen frequently as a tag-along of a wealthy Muslim student who treated Obama like a male whore, parading him around like a prostitute in 70's-era high heeled boots, fur coats, and effeminate dress for a man even in those times. It was pretty weird.
He lived with the wealthy Pakistani friend, Sohale Siddiqi, in New York when he started attending Columbia, but said the hard drug use was distracting from his studies, and he needed to really focus on his curriculum at Columbia if he was to continue to go down the path that would help him reach his goals. Everyone interviewed that knew him in those days said that drug use was a common presence in his life, but this was normal among his peer groups in Hawaii, California, and New York. He admits use of marijuana and cocaine himself. It should come as no surprise that he is open with sharing acts of physical intimacy with other men, as that has been normal for him since his early college years at least. This latest article in the OP merely points out how wonderful and sensitive he is to his openly gay oval office assistant, to include holding him closely when the Supreme Court upheld gay marriage as a Constitutional right for homosexuals.