Using her magic to cover the wound, Rarity released her fangs from Twilight's neck, which was covered in blood that the vampire didn't drink.
"I-I can explain.." Twilight mumbled weakly, slightly dizzy from her marefriend's new habits.
The nurse, who was as pale as a ghost, stared blankly at the scene before her, unsure what to think about the situation. "Why is a vampire here!?"
"Because Rarity's a new vampire. She isn't used to this new life, and since she didn't drink enough blood from me, she fainted. That's why she's here." Twilight explained.
"I see.. Okay. I'm not supposed to do this but she can stay. If I get in trouble I get in trouble. Normally, vampires aren't allowed here.."
Rarity gave a fanged smile. "Thank you so much!"
"No problem, dear."
-Timeskip-
Rarity sat on a chair in Twilight's living room, feeling much better. "Thank you, darling. Twilight, I couldn't have survived that without you."
Twilight smiled at her marefriend. "No problem."
Suddenly, the Alicorn smirked, her face turning a shade of pink. "I want to try something, Rarity. Would you please lay down for me?"
Rarity, seeing where Twilight was going with this, was more than happy to lay down. Twilight lay on top of her marefriend, kissing her roughly and passionately. Rarity kissed back with just as much passion, if not more, and carefully bit Twilight's bottom lip. The Alicorn let out a tiny gasp, allowing the vampire to slide her tongue into her mouth. Twilight moaned softly, intertwining her own tongue with Rarity's. The two mares could both feel their nether regions heating up as they continued this dance with their tongues.
After a few minutes, Twilight pulled away, focusing more on kissing Rarity's neck rather than her lips. As the Alicorn planted kisses and bites down her neck, Rarity let out soft moans which gradually got louder. Wanting so badly to feel pleasure below her waist, the vampire began to softly plead through her moans.
"Please.... Twilight..... Please.." She panted.
Twilight pulled away, much to Rarity's dismay, smirking. "Please, what?"
"Please... P-Please fuck me, T-Twilight!"
Twilight nodded, moving her face down in between Rarity's legs. She breathed on her opening, making Rarity writhe slightly in pleasure.
"Please taste me... Like I'm a t-tasty treat.." Rarity begged.
Twilight slowly licked up and down the unicorn's entire opening, causing Rarity to moan. Up and down, faster and faster, the Alicorn moved her tongue, gradually focusing more and more on Rarity's clitoris.
Rarity felt her climax rising and rising, "T-Twilight~! Ahh~" She practically screamed, panting as she felt like she was about to burst.
Twilight sucked on Rarity's swollen clit, feeling like she was on top of the world since she was making her marefriend feel amazing.
Rarity moaned loudly as she finally orgasmed.
Twilight kissed her marefriend softly as she came down from a higher plane of pleasure.
Rarity panted heavily when she came down. "I-I love you, Twilight..."
"I love you too."