Kissing in a dream often reflects a wish for closeness or reconciliation, and not necessarily romance in the literal sense -- it can point to reconnecting with a part of yourself, an idea, or a relationship you've felt distant from. Who you're kissing usually matters less than the sense of connection the dream leaves behind.
The Moon answers those who are ruled by Venus, and Venus answers those ruled by the Moon. - Picatrix (Andalusia, ~1000.AD)