He is a homosexual, practicing Muslim. Butt, then a sizable portion of Islamic males are.
Remember this:
“Basketball is another encouraged pastime. Obama played pickup basketball on primary days for good luck, and although he has since been criticized for hosting a men-only game of basketball and rarely inviting women to play golf, the hoops ritual has carried down to the younger staff members. Their basketball schedule includes three unofficial games: one on Tuesday night at the Department of Interior; another on Sundays that includes both White House and agency staff members; and a weekend league team. “
http://www.nytimes.com/2010/05/02/magazine/02obamastaff-t.html?pagewanted=all
Long article but interesting to read now...