Sink your teeth into this juicy bit! True Blood stars Anna Paquin and Stephen Moyer have bred. The celebrity couple are expecting their first little vamp, according to multiple media sources. The HBO stars married almost two years ago after being engaged for a year. Paquin's rep confirmed her pregnancy to People, Radaronline.com and all of the other news outlets. This will be the first child for the 29-year-old actress and the third child for 42-year-old Moyer. During her engagement to Moyer, Paquin came out as bisexual as part of an equality campaign. Both Paquin and Moyer will be return for the fifth season of the hit show. In other pregnancy news, Sabrina the Teenage Witch star Melissa Joan Hart celebrated her 36th birthday with a surprise pregnancy announcement. The former ABC star Tweeted, "(Early) Happy Birthday to me! And baby makes 3!" along with family photo featuring husband Mark Wilkerson, their two sons and her expanding belly.