[Oh now that was a delicious little sound. He stills his hand, waiting for Spock to calm himself. Maybe he brings his hand to the side a bit. Musses another set of feathers subtly. Grinning all the while like the wicked thing that he is, of course.]

The knit of this fabric does not give that much, and you do not seem terribly experienced in the control of your wings. Give them a little flap- they are more flexible than you seem to give them credit for.