In the DeviantArt profile of Mark criley i found this simple tutorial for those who are starting out in the freehand drawing of characters.
In this one in particular you can learn to draw two people kissing getting quite real results in the sketch ... then the details are out of your hand;) The tutorial gives it a manga style finish ... but once the sketch is done you can give it the style you prefer.
Unfortunately the link is broken, you can only see a box with a cross, if it were possible to correct this detail.