Time to 'do' little sis

Holding the bottle of tanning oil Adam looked over his sister's luscious backside as she stood before him in nothing but her platform heels. He had tired of her cock teasing and felt it was time for a little payback.

"Come on bro and...." Cindi said as she impatiently waited for her turn for Adam to start applying the oil onto her back now, "do me."

"do me." Adam kept repeated in his head before adding, "I certainly will." He now felt the head of his throbbing cock was now directing his actions more than the head on his shoulders was as he stepped towards his innocent little sister.

Adam poured some oil onto Cindi's shoulders as she kept holding her hair up, out of the way, above her head. Then he began to work the slick oil into her shoulders and then down a bit lower on her back.

"Mmmm that feels so good." Cindi moaned as her brother's powerful hands kneaded her lower back.

The horny 20 year old looked at Cindi's nice bubble butt and then poured some oil directly on it. He quickly began to spread the oil all over her firm ass cheeks as they both enjoyed every second of this naughty little massage.

Slowly Adam slid one of his oil coated fingers along the crack of her ass and just barely touched the edge of her anus.

"Oh be careful Adam!" Cindi squealed as she felt her big brother's finger briefly touch her in that forbidden spot and she let her hands down from her head along with her long blonde hair.

Suddenly Adam moved his arms around his sister's body and quickly placed his hands over her juicy 34DD breasts and began to squeeze them while standing behind the busty blonde vixen as he pulled her close against him.

"Ugg...Adam w-what are...." Cindi began to ask as she felt his hands running all over her tits and his body pressed against her back.

Cindi's eyes flew open as she suddenly felt Adam's huge log resting just between her ass cheeks and wasn't quite sure what was happening.

"Oh God Adam! We...we....can...." Cindi screamed as she felt him slolwy moving her towards the large tanning bed.

What happens next to the busty teen tease?