... it happens.
There is such a thing as chemistry in the arousal formula. Have you ever spent time ... let's call it "studying"... a porn star, or stripper, or perhaps some other babe celebrity? Her appearance and perhaps on-screen persona get you there every time and with little effort. Then one day you actually meet her and... meh!
I have certainly had SB's who looked amazing from a distance. But once we got on the sheets (does anyone actually fuck under the sheets? Why?), the heat just dissipated. Those end up as one-BCD SBs for me. I generally just don't try to reschedule and let us drift apart. I'm not rude and don't "ghost" her. I just don't initiate contact, and I'm busy if she asks to meet again.
So what's going on? I'm no psychology expert, but I've always believed that erections start in the mind, not the penis. There are subtle, but powerful nuances to behavior that communicate more than we realize. I'd say these, perhaps involuntary behaviors, can either compound physical attractiveness or actually overcome it, to the point that even a mechanically perfect BBBJ can fail to support your launch.
Illustration: have you ever found yourself thinking about another woman while getting that BJ? You know... she's hoovering away like she just plugged that 110v vacuum into a 22v outlet, but you just roll up your eyes and find yourself picturing that 18-year-old grocery clerk you saw this morning, or that way-too-hot, 25-ish new hire babe from Marketing at the office dressed in a tight pencil skirt and a low-cut sweater? Yeah... me too. Damn, I wish that Marketing babe was in the bowl! :p
For me, it's all about enthusiasm. If I think she WANTS to fuck - and to be specific she wants to fuck ME - I will respond no matter how good or average she looks (yes there are limits). On the other hand, if it seems like she's "phoning it in" just so she can do enough to meet the requirements of the negotiated arrangement, then I can tell.
There are few "legendary" (in my mind) SB's that I have been lucky enough to have over the years. When she leaves after a date and I find myself automatically saying: "I love fucking that girl!", I know she's a keeper. Sadly, I have not always been to actually keep her. But as we all know, all arrangements end.
All that stated: My advice (if you still care LOL) is to let her slip away. There are literally thousands of new SB profiles coming onto Seeking every month in your state. As long as human biology continues to function, there will always be women turning 18+ and some percent of them will join he sugar bowl.
Life is good.
The Cat