My friend just bought a couple of t-shirts as a gift to his girlfriend. These couple t-shirts are very popular in Thailand, though I personally do not like them, if worn by a couple at the same time. I see no reason why one should declare their "love" like this for all the world to see.

I actually prefer custom tee shirts where every piece is different. It's best if t-shirts are designed by myself so that there would not be two of the same in this world but it's too bad that I do not know designing!