Two tips.

1) Don't be overly sentimental: there's different kinds of romance, and every romance scene doesn't have to read like a romance novel. Maybe the two in your scene are a tad awkward, a tad unsure--happens IRL all the time. A look between two people in a crowded room can have a neon bright emotional affect if you've set it up right. 

2) Make sure it's what your character wants: every character should WANT something. If your character doesn't want the romance strongly enough, just don't do it. That'll help you avoid the 'forced' issue. 

2A) Make sure it's what YOU want. Got a RPer you crush on? Ask her to RP some romance with you! Make the romantic scene exciting for you, personally, and watch the sparks fly.

Need any more help? You know where to find me. <3