I gather you and your partner are trying to spice up your love life and that the underwear/bed wear Ida is coming from her. It sounds to me like more talking to each other would help you decide.
Is it because she finds this stuff a turn on on others but not on herself? Or does she want to wear this kind of thing too but doesn't feel able to say so? And is it al, about the look, or the feel of the fabric, or because of the idea of undressing you (or will she want you to take it off yourself, or keep it on as long as possible?)
What I am trying to say is, at the moment this seems to feel new and unfamiliar to you (both?) and I see this going wrong because you're not sure what the expectations are, on both sides.
What Johana S said about the ribbon was pretty important in general about fabrics. How they feel is usually at least as important as how they look. I once bought a jacket with a satin lining because the lining was divine. I sometimes wore it at home, alone, with nothing underneath just because it felt so spectacular (this was a long time ago, I don't have the jacket any more).