cucked by gf, and her best friend

Me and my girlfriend lisa had bee going out for awhile, she is 5'7" blonde, tone witha nice little body and shaved pussy. Oh yea im 23, shes 20. We have a great sex life and get it on lots. We've talked about several fantasies about her fucking otehr guys, and he with really big cocks. I'm about 6.5" but fairly thick.

I had been bugging her for a threesome with her best freind holly for awhile. Holy is about 5'10 very skinny, 23, and a model. This was there idea of a threesome.

"Babe i have a surprise for you tomorrow" i got a text from lisa one night.

"what is it?" i replied back

"you'll have to wait and find out, be ready at noon, im gonna pick you up" she sends back.

"alright babe, i cant wait" i reply back, as i lie in my bed wondering what it could be. those where the last texts we exchanged that night.

She picks me up the next day, and holly is riding shot gun ijn her car. My cock immideatly twitches to life. "so where are we going?" i ask.

So? What happened?

then?????