Thanks. Yeah, I don't think DH would go for Flicka (horse associations), so we wouldn't have that problem... he's totally planning to chop the names down to Pip and Flick. I get the feeling he's hoping for a pair of tomboys if (heaven forbid) the gender scan shows two sets of lady bits!
Felicity is one of my top picks for one of my twin girls too. I love that name! I think if they went by the nicknames Flick and Pippa, it would not sound too matchy at all. Those are very cute nicknames! So are Pip and Flick.