Neil Patrick Harris is the latest member of the “How I Met Your Mother” cast to get bitten by the baby bug – the actor and his longtime partner David Burtka are expecting twins. Harris – whose co-stars Alyson Hannigan and Cobie Smulders each became moms last year – announced his good news via Twitter on Saturday. “So, get this: David and I are expecting twins this fall. We're super excited/nervous/thrilled. Hoping the press can respect our privacy,” he wrote. According to reports, Harris, 37, and 35-year-old Burtka, an actor and chef, will welcome their bundles of joy via a surrogate in October. Rumors first surfaced that the couple were searching for a surrogate in June 2009, but the former “Doogie Howser, M.D.” star slyly told People, “We are not currently expecting a baby," adding, “Maybe someday …" It looks like that day is here. Source: CNN