Game of dare

100% fiction!

Ever since we were teens my sisters and I have wound my brother up. When we started to smoke he wouldn't touch them, when we started drinking he decided to be teetotal. So we mercily called him Mr Straight and kidded him about how he would never do anything remotely dangerous or taboo.

I don't see him very often but his work occasionally means he stays with my family for a few days when he is in the area.

On one such visit I was home alone with him as my family were away visiting my husbands parents. I had been drinking and chatting to my brother and I started reminding him of his reputation as Mr Straight - much to his annoyance. "you never do anything" I said " I dare you to do something shocking!"

He thought for a few minutes and then suddenly stood up and dropped his trousers and underpants exposing his large cock, I thought he was going to do something obvious like go into my garden naked but instead he stood very close to me and began wanking himself off. For once I was shocked and sat in front of him with my mouth open. "Ha!" he said "I bet this surprised you - wanking myself in front of my sister!"

We have always been very competitive and I just couldn't let him get the better of me so I leaned over and sucked the end of his prick. "Oh god your such a bitch sis!" he said as he realized I had bettered him again. Then suddenly he pulled his cock out of my mouth turned me around and bending me over he pulled my panties down. He then began to lick my ass and stick his tongue into my anus.

I let him do this for a few minutes and then, with my pussy and ass dripping wet I whispered "fuck my ass bro". My ass was used to being fucked as my husband had fucked it just that morning before he left but my brothers cock is twice the size. As he pushed his throbbing prick inside I could feel the burning and moaned - with pleasure.

"Oh god I have wanted to fuck you for so long" he said "you and Mary" - Mary is our older sister.

When I could feel his cock beginning to pulsate I turned around and started to suck his cock again "mm, I love the taste of my own ass" I shouted and then returned to my sucking.

My brother's cock suddenly exploded with cum spurting out and into my mouth. There was so much that I nearly couldn't swallow it all. When I had finally cleaned up his cum and his cock began to droop I looked up at my brother "we are so bad" I said standing up. I kissed him full on the mouth.

As my family were not due back until the next day I said to my brother "I hope you've got more for me cause my pussy needs some of that lovely cock!" I grabbed his hand and took him upstairs so he could fuck me in the same bed as my husband does. He lay down with me and fucked my pussy hard and rough until he ejaculated again.

This time, with his cum dripping out of my pussy, he went down and licked me clean. After that night we began to fuck regularly, we know it's wrong but I love being fucked by my brother!