Deep breath and no pressure. IF anything happens, then just go with it. If you put pressure on either of you, then it becomes less fun and more work. Go and have a good time and then go home. Instead of pressure or nerves, think antici...pation and excitement. Also realize that during and afterwards, your brain will most likely be telling you that this isn't happening when in fact it is. Just live in and enjoy the moment of spending time with someone you love.