Photography http://fittor.fun/bhabhi-dever-or-sasur-ne-milker-choda/ barzzer64 NAIROBI, Sept 22 (Reuters) - Kenyan security forces werelocked in a standoff on Sunday with gunmen who killed at least39 people in an assault at an upmarket shopping mall in Nairobi,where the al Qaeda-linked militants were holding an unknownnumber of hostages.