Blood Sacrifice

A vampire master demanded blood from her loyal servant so the servant took a steel pipe and stabbed it into her own navel. She then poured her blood into glasses that was already set up in front of her. She had to twirl the pipe in her navel so she can give more blood to her master. Unfortunately, she ran out of blood on the fourth glass. The vampire master still wants more blood so she ordered her servant to stand up. The vampire master started twirling the pipe, torturing her servant even further. The vampire master then decided to drink the blood directly from her servant's navel. After she's finished, the vampire master told her loyal servant that the blood from her navel tasted delicious.

What happened to the loyal servant after serving her master?