I slid my tongue on both sides of her outer labia, she began moaning, my cock felt like it was going to blow out of my shorts and was leaking pre-cum ...aking a stain. "let's get were we can get more comfortable". She moaned. We went into their bedroom she lay on her back and spread letting me take in all her hot shave glory, making my cock throb. I buried my face in her pussy, she moaned and rubbed her cunt in my face. I pushed her knees toward her head as i swept my tongue over that. She held onto his ass, enjoying the feeling of a dick in her again, after so long. It hurt her a little, she had tightened up. She wrapped her legs around his thighs and brought her arms around his back. He slowly pulled out, the exposed part of his dick getting suddenly cold, so he pushed back in, feeling the tightness and warmth overtake him. He never wanted to leave his sisters pussy. She smiled, feeling the same way, knowing his feelings, Slowly bro. I know whats going to happen, I want. She kissed me passionately before grabbing my cock.'After the last session i haven't stopped thinking about your cock and the way you fucked me with it'.With this she led me to her office and pushing the contents of her desk to one side she climbed up onto it.As she did this her skirt rode up and i discovered that she had no panties on.This exposed her shaved pussy which i was sure she hadn't had before.'I must have had a premonition.that i was going to have some fun today as i don't normally. I began to beg him to fuck me but he said he wanted his cock sucked by a dirty unfaithful slut first. I knelt down in front of him and unzipped his cock. He let his trousers and underwear fall down his legs as I held his huge hard cock, licking the length then licking and gently nibbling his heavy balls. As I tongued his balls, I slowly walked the length of his cock, whispering how much I was looking forward to having him slide it inside me. He said as I was such a dirty cheating slut I should.