I let her in.

The command is all I need to unlatch the window. I don't have to waste the time opening the window as the fly open only for her to grab them before they can break against the wall.

"May I come in, sweetling?" she purrs.

"Yes, my love." I hear myself say before I can even form the thought of NO.

Oddly instead of advancing she gives a shiver before ordering "Call me mistress, sweetling."

"Yes, Mistress." I respond emotionless as my heart hammers, unsure if it's fear or arousal.

She steps fully so that she's half in and half out as a foot remains perched on the windowsill while the other lands firmly on my chest, my eyes gaze up at her plump thighs and if not for the lack of light I am sure I could see well under her dress.

My heart beats faster as the effect I was under seems to dissipate and I realize she has a red trickle coming from the left side of her mouth and the smile contains a pair of canines that are far to long to be human. My heart pounds as I realize my mistake and she seems to realize it to as she just barely opens her mouth for a long almost pointed tongue licks the red trickle away.

She pushes me back gently with her foot before she jumps down in front of me just close enough that her breasts lightly touch the tip of my nose as she lands without a sound as I find myself eye to eye with her. The effects must be completely gone as I glance at my sister a yell of "Run" on my lips but a soft finger on my lips ends that as she purrs into my ear "Now. Now. Sweetling. I'm not here for her and there's no reason for her to join in on our fun....unless you want her to."

My heart pounds as the woman continues to smile as she pushes me back until I find myself against my bed. She darts towards my neck as I brace for being drained of all my blood but surprising instead she simply gives my neck a long kiss as I remain frozen in fear. She lets out a small giggle before she stops her kissing and sucking at my neck with a pop and I find her quickly pushing me down to sit at the edge of my bed. She stands over me with a hand on her wide hip and another on my shoulder as she gently caresses were the had kissed me.

"Please....mistress. Don't hurt my sisters." I restate my one wish that they do not pay for my mistake.

"Nonono." she says fires off as she shakes her head while her unblinking red eyes never leave mine. I gulp my heart sinking at the realization I have doomed my entire family.

"That simply won't do. Mistress does nothing more me and I'm not an egotistical old hag like my mother.....My love...if far better....BUT...I don't think our relationship is there." she says as I simply furrow my brows in confusion

I don't know what happens first her saying "At least YET" or her on her knees and pulling my pants off as my erection springs up despite my fear. I inhale in surprise as I feel her lukewarm hand gently wrap around the base of my cock as I register she's moved with inhuman speed.

"Call me Laura...for now." She purrs as she seems to inhale my smell.

"Laura...." I start as she gives a shudder as I continue to plea"Don't...Hurt my sisters. Do What you want with me...just please.."

"Laura...so forward Sir John...Addressing a noble woman like you would one of your common bar wench that must grace your bed so often." She teases with a rather realistic faux version of noble outrage that would probably be more convincing if she wasn't on her knees with a cock in her hand. Just as she was looking like she was about to suck on my cock that possibility shatters. For an instant I feel the pain of her fangs digging into my plump right thigh before that pain somehow turns to an almost orgasm feeling that sends my heart fluttering as my gasp turns into a moan.

"John. Are you ok." Ana calls from her bed as I glance down at Laura's eyes staring up at me with an almost cat like look of contentedness that honestly would be endearing or even arousing if not for the fact she's a blood drinking monster that can snap me like a twig.

"Y..Yes...just had a nightmare and...and stubbed my toe." I lie horribly but thankfully she's to sleepy to realize it. I think for a moment that's the end as she starts to roll over. I suppress a gasp as Laura lets go of my thigh with an audible pop.

"Why's the window open?" Ana says as she stops turning over. I watch a couple of blood drops well from the puncture wounds given to me by her before her tongue licks them up as luckily it seems the bleeding will stop rather quickly.

"I...I was hot so I opened it for a bit." I lie again as Laura gives me a mischievous grin before her long tongue glides up the center of my shaft sending a moan that I barely manage to quiet.

"Don't let it get cold." Ana mumbles as she lays back down and snuggles more under her blankets.

"Such a deceitful rogue to lie to the fair maiden that is your sister." she mumbles as her tongue never leaves my member. I don't know if it's the blood loss or the fact there's a vixen on my cock but I start to feel woozy seeming to trigger her as she quickly impales herself on my average cock. I manage to stifle a gasp as to my surprise unlike her finger or even her tongue her mouth and throat are not clammy or tepish instead it feels in comparison like I'm having a sauna give me head. With a far more sense of urgency that with my thigh she bobs on my cock as I can't help but stifle gasps and moans as if it wasn't for the occasional wet plap her face fucking herself would be almost silent.

Her hand pushes causing me to lay on my back with my legs dangling off the bed. Not once during her self inflicted throat fucking does her eyes leave mine. Not even when I feel my balls tighten and a load trying to escape into the surprising warm interior of a blood drinking monster does she blink or the feline look leave her. Not even when my hips thrust in a greedy need to deposit the load as deep as I can does she stop. Only when I feel as if I've emptied all the stored contents of my balls does she peel her eyes away to glance at my sister.

Despite the wooziness of blood loss, the gasping for air, and the exhaustion of being woken up in the middle of the night to have a tryst with a blood and apparently cum drinking creature I manage to croak "Please....Laura....leave...her-"

I find my hand that I had stretched out towards her in her now surprisingly warm hand as she plants a delicate kiss on it.

"That was fun sweetling. I hope you don't make me wait outside next time." she purrs as she gives me a quick peck on the cheek as I get a whiff of the scent of my semen and blood on her. For my part I can only lay back down feeling the loss of blood hitting me as I watch her sashay back to the window as her dress covers most of her large toned ass as she simply closes the window. I don't have time to wonder how she will leave as my eyes grow heavy the last thing I notice before I drift off to sleep is someone pulling my blankets over me.

I don't know how many times Ana must have called me to wake up but eventually I manage to crack my eyes as I feel my head pounding and my neck feels sore.

"John! Gods I was worried you were dead. Do you know how late it is?" Ana rebukes her auburn curls clinging to her as the sunlight does it's best to shine through the fabric of her white night gown.

"What....how late..Why didn't you wake me earlier." I grumble as I try to roll out of bed only for a cramp in my right thigh to cause me to pause as I rub it only seeming to have made it worse.

"I've been trying. Hells I even had Evette try to shake you and all she got was you mumbling......um...stuff." she bites back as a brief flush comes over her "Now get dressed, there's some food down stairs and I've got all the indoor chores done. So that means you have to do the outdoor ones."

Finally I manage to roll my feet under me and freeze. On the window the window pane about at 5 feet up there's a lip print in black. I feel a bit of wooziness as I remember the dream from last night....but I'm pretty sure it wasn't a dream.