ARRANGING A THREESOME WARRINGTON UK AREA

[CUCKIN ON GAS]

I have a girlfriend who's fantasy has always been to fuck 2 guys one after the other but not at the same time , She is a very attractive 45 year old slim blonde executive, dresses very classy, photos available if required, I am unsure how to arrange this as the additional guy would only be required to fuck her in the hotel room and then leave and then me go up and have her straight afterwards, so really he would be using her and she would be using him .
Any advice on how to go about this would be appreciated, the guy would need to be clean wear protection and she would need to find him attractive in return she would be willing to dress as required.

thanks in advance for any help