What personal sexual requirements, like and dislikes do you have?

[Kaybee]

Ive been in a monogamous relationship for thirteen years.My partner is twelve years younger than me,we come from very different backgrounds and cultures.Rather than our sex life getting boring over the years it has evolved like our relationship.He goes nuts for having his nipples played with as do I,,,,he loves anal as do I ( i like to be on the recieving end),even after all these years he loves to have sex,and quite often at very impromptu moments.
I couldnt imagine an open relationship ever,,,,,I just dont believe they work,or that any couple who do are serious about their relationship.