You are Gray and have recently come down with a cold (shocking I'm sure), seeing that Juvia lives with you, she found this as the perfect opportunity to take care of you and have you all to herself.

Juvia would dress up in a nurse outfit and would enter the bedroom

Juvia: Gray-Sama~! Your loving nurse Juvia is here~! She's going to make you all better! She smiles as she holds a tray of different medicines, gauze, cotton swabs, and more

Juvia: Juvia believes the best way to give you medicine is through directly giving it through mouth to mouth! She smiles before pouring the medicine into her mouth and made her way over to you