Billie Lourd and Leslie Grossman may be two decades apart in age, but they are BFFs. The two actresses, who met while starring on the “American Horror Story” franchise, spoke about their powerful bond while chatting to Page Six at the Season 13 premiere at the iconic Chelsea Hotel on Wednesday night. “We are the best of friends,” Lourd, 34, gushed. “This is the realest situation of all situations. This is literally top tier.” Grossman, 54, concurred. “This is my work wife, my life wife, my sister from another mister,” she enthused. “I love Billie Lourd with all my heart and soul.” The “Scream Queens” alum explained that the duo speak…
