What is your Take on this - Friend wants me to do escort at his house but wants

A friend of mine 71 is a fellow strip clubber and lives alone. He lives on a fixed income. He has been seeing a 21 yr old escort off backpage.com at $125 / throw. He does not have a computer but got a list of girls names and numbers from a friend. I have seen her photo, etc. She also has an 18 yr old sister she sometimes teams up with along with another gal 25. The gal he has been seeing 5 yr is in jail for an indefinite time so this current one is a new one for him. He says she will do just about anything and that he had done her for an hour.

He wants me to come over to his house and do her in one of the bedrooms at $125, then $25 to him (gas money to cover his going to get her). I had done this before with another girl and it just made me feel plain weird doing it there in his house with him around. After I am done, he will do her (or I can do her after him). He does not want me taking her to motel (or doing her behind his back).

I already have a stripper I have been seeing for around 2 yr so I really have no interest in this escort. When you rotate multiple gals, it increases all kinda risks plus weakens your position with yoru main gal. From what he tells me this escort sounds fucked out as she takes pain pills like Vikodin. He says "if they take that, they can go a long time and see 3 or 4 guys a day." I don't like his control freak ways about it either. Whats in it for him is she would give him price break for bringing in another guy to do at session. I guess I prefer privacy without another guy around. Am I too skittish? Another friend of his has indicated he will do it. The two of them did a threesome with a 23 yr old stripper not too long ago. I simply have no interest in doing a threesome like that and told him it would have to be in a bedroom with privacy. What I don't like is his requirement of "transparency" like he wants to manage where I see his whore. I told him no interest for now. Sure it would be nifty just to drop by his house on way home from work and do a whore but in the back of my mind I would be wondering if he did her right before I got there LOL. If he had been banging her for an hour I don't know if much would be left for me.

Whats your take on this? I have told him no interest for now. The current gal I have been seeing (28) 2x week drains around $1100 - $1300 a month from me. I have all I can handle with her and some of the other girls at the club I have done. She is a stripper at club where I am VIP.