Not to sound arrogant, but...I feel like a sex goddess!
Really, if you wear it with confidence, your partner will go crazy for you; trust me.
When I try it on, I get turned on knowing that. Confidence is sexy, you know?
As for unflattering pieces, they kind of make me laugh. I had a pair of panties that went with this really hot chemise. The chemise fit wonderfully, and I loved it. The panties were absurdly tiny, and squeezed half of my butt cheeks over the top (where I had an oh-so-sexy plumber butt goin' on) and the other half of my butt cheeks out of the bottom. I had a laugh when I looked in the mirror, and wore a nice pair of panties that flattered my derriere.
Don't let lingerie make you feel bad--we're all shaped differently, and not every piece is going to work with everyone.