OK I have no sign from her and now another girl showed up in my life and damn me! I like this one as much as I like the other one!

The only difference between the 2 of them is the age ... one is 18 and the other one is 42 ... and I'm 30 .... what should I do next?

I mean I want them both

and the girl who is 18 said that she doesn't want to marry but she wants to live with her boyfriend and her girlfriend because the sex life will be amazing in 3!

How should I tell the 42 one that I want a menage a trois?