Your girlfriend and her sister

You can't have been sleeping for long, it is still dark outside and you are still really tired. You can hear voices near your bed, but you can't tell who's voices they are, you are still half asleep.

"Look at his dick", the first voice says, "I told you it was really small"

"I know you told me, but damn I didn't think it would be that small", the second voice replied.

You try to turn on the light and see who it is, but your hands are tied to the bed post.

"Oh look, he's trying to turn on the light", the first voice says.

"How about we help him out? We can then introduce his new life.", the second replies.

The room is suddenly flooded with light as you see the faces of your girlfriend, Kate and her sister, Olivia. "Sup bitch", Olivia says as you look at her face. "I see you've been trying to bang my sister Kate with this tiny ass cock hey? Bet you couldn't even give this girl an orgasm with it" she continues.

Kate is standing next to her sister, she looks a bit uncomfortable with what is going on.

"Well seeing as you've been trying to bang my sister with that pathetic little cock of yours, Kate and I thought we would show you a real cock. Oh and also, don't worry about your little thing, we put that in the tinniest chastity cage we could find. Jeez my clit comes further out of my body than your dick now.". You are still a bit sleepy so you can't feel your dick in the cage, but a quick look down shows a tiny steel cage around it.

You then get a closer look at Olivia and Kate. They are both completely naked except their panties. Olivia's small perky tits are sticking out and you really want to suck on those nipples, but your sure she won't let you. Kate's average sized round tits are also looking appealing to you, though given the situation you can't hope for either of them to let you play with them.

You now also notice that both of them are wearing 12 inch strap ons over their panties. This must have been what Olivia meant by a real dick.

Olivia saw your eyes lock onto the strap on and takes this chance to ram it right up your ass. She doesn't use lube or anything and just keeps pushing it in. The rough plastic of the strap on scrapes against your ass, you try to scream in pain but your girlfriend rams her strap on down your throat.

Now both the girls are fucking you hard and fast. Olivia's strap on ravages your tiny little ass hole and Kate destroys any chance you have of screaming for help with hers down your throat. The girls fuck you for at least half an hour, though your not entirely sure. Its hard to keep track of time when your girlfriend's cute sister is tearing you a new asshole.

Eventually, you hear Olivia say, "I think this bitch has had enough, we'll give him some more later". Then your girlfriend replies with "Fine, I'll make sure she enjoys her time at home over the next few days while you are out of town.".

Kate then roughly throws your clothes at you and expects you to get dressed near instantly. You are limping from the pain of that strap on up your ass and this girl wants you to quickly get dressed. Both the girls were already fully dressed by the time it took you to get your pants on. Kate impatiently watches you pull the rest of your clothes on though Olivia just walks out. You hear her thanking Gabriella for the party and then the front door open and close.

You and Kate are next to come out and Gabriella is waiting at the front door. You quickly thank her for the party and then get in Kate's car, you'll come back for yours later. As you drive home, the look on her face makes you think you should be very scared of what is to come.