"Best sex I have ever had "

To be honest,, with time I forget the " Best Sex I have had " with old gf';s and new partners replace that

of course there is times where i can remember fucking in a BIFFA bin or climaxing into my partners mouth while playing dragon force on guitar hero! ( Hard not expert difficulty , Im not asian )

Point is I never really think ( where does this sex rank ) its either good and I want to do it with that person again Or I dont,