Woken up

You are asleep for what feels like only a moment when you feel the sheets lifting up and Shelly's naked body slip under the covers with you. "What are you doing" You hiss "Mom isn't asleep yet". Your sister just smiles a wicked smile and pushes her body into yours locking you in a long hungry kiss. As your tongues intertwine she moves your lame hands to her massive tits as you start massaging them. As Shelly grew and she first started getting breasts they have just kept growing in the soft mountains they are now. She loved wearing tight shifts and rarely a bra and low cut shirts causing you to fantasize about them for years. As your hands move over them squeezing and playing with them they feel even better than your dreams as they squish and move in your grip. She breaks the kiss for a moment to whisper "rougher" before locking your lips again before you can respond. You grant her wish and start grabbing her tits hard and pulling on them causing her to moan into your mouth. You moved your fingers to her large nipples and started playing with them twisting and pulling them as you felt her body start to heat up more.

As she gyrated her hips on top of your body you realized she was getting wet and you started slowly sliding your hand down her body enjoying access to every silky smooth inch of her skin. As your fingers probed her wet folds she pressed into your hand and you inserted a finger. Moving it slowly with no idea what to do Shelly quickly took control and told you what to do with how many fingers and how fast. It didn't take long under her instruction until she was moaning loud enough she bit down on your pillow to muffle it as you moved her hips to get your fingers deeper. As you moved your fingers faster and faster and teasing her clit you felt her body start to shake as she pressed her head firmly into the pillow and started screaming into it as her hot juices shot out running down her tights and onto you.

You both froze as you heard your Mother waking down the hall, you quickly rolled on your side blocking the view of Shelly's smaller quivering body under the covers. You heard your door open and heard your mom whisper "Why are you still awake". Your mind raced and you said, "Just playing with a toy mom I will be asleep soon". Your mother just sighed and said "Soon please, I am going to bed now so good night". As your mother left Shelly poked her head above the covers and slithered up your body and said "A toy huh".