It's understandable you feel unsure about this aspect of relationships with your background, in many ways our parents are our blueprint. But the good news is you can be your own blueprint, and use your growing up experience as a blueprint of how you don't want to live your life.

I was kind of awkward about sex/intimacy too, that changed when I met the right person and I felt ready. Believe me it is unlikely to feel shameful when you feel emotionally connected to that special person - it's just you and them for that moment, nothing else matters.

Yes, some people are very open in talking about their sex lives, even in a work environment, I'm not one of them - I respect my partner and that part of our lives is private, not shameful, just private. If other people want to talk like that, let them, I don't join in - it's okay to have personal boundaries, it's healthy in fact.