Looking for a story

Im looking for a story I read years ago about a guy driving cross country for a job I think and his car broke down. He got locked up by 2 college girls, one I think was Hispanic and the other was a red head who was a bit shy and more cautious and reserved. I think in part 2 they stop at a motel and have a 3some in a hot tub and in the last chapter they travel to they guys destination and have a night out at a bar that belonged to his friend. Any help identifying the story would be appreciated.