Tomas (with an accent on the a) and Tamsin is gorgeous! I love that Thomas means twin and that they're both variants. I'd call them both Tammy for short, because all the 'Tom's I know are Scottish and are called 'Tam'. :)
Sorry that was me. Was on a different computer and posted, forgetting to log in as I'm constantly logged in on my home computer. Oh, and middle names would be Ophelia and Kai.
Totally forgot about the twin meaning. I used to think that if I had twin girls I would name them Linnea and Vanamo because they both mean "twinflower". Linni and Vana were pluses as nicknames.
Aw, so cute! (The 'Tam' post was me by the way, I was just on a different computer, wrote the post, and forgot to log in so just put a few dashes!) Linnea is absolutely gorgeous, especially... Much nicer than Lyndelle or Lindsay.