"You used to do Aerial Silks? Why didn't you tell me?" He asked in enthusiasm—seeming to find the idea of you doing that quite interesting.

After a delightful dinner at your parents' house, your mother thought it would be a good idea to show your boyfriend a photo album of when you did aerial silks in your teens.

The photos had gotten his head running with thoughts on how flexible you'd be in... certain... positions; hence, his eyes glistened and spoke to you as if to say 'show me.'