Afternoon MTC,
First of all, you've got to get this "doubt whatever I did, it would look remotely sexy..." out of your mind. If we go into anything thinking that we're pants, it's not going to sparkle.
So, totally start digging that you are hot shit. Own that and you're half way there.
What to Wear
I wouldn't worry about costumes. Wear something you love. Your favourite lingerie with your most beloved outfit that makes you feels sexy. Hell, the more layers the better: a sexy macintosh with bare legs and heels, can be pure awesome. It's all about a sllooowww reveal....the unbuttoning of a blouse, the slide out of a skirt.....
Personal Time
I recommend taking some sexy time to yourself. Pamper yourself, rub sweet smelling lotion into every part of you, dress to kill and adore yourself with every stroke. Whilst standing up, really take time to feel your body with your hands. If you're game, do this with a mirror and start seeing how good you look.
Music
And put some killer music on. (still without an audience) Whatever makes you feel as bad ass and sexy as hell. My theory is that men likes a woman putting on a show because it's an excuse for her to show him just how much she digs how good she looks. And show how much she enjoys what that confidence does to him too.
I totally recommend this by The Coasters http://www.youtube.com/watch?v=I3V3Zpz9_0Y&feature=related It's got a great beat, *and* the movie it's used in has the best lapdance everrr, so it's good for ideas! But choose something you love. I don't know what web cams you use, but when the time comes, if you can both hear the music, that's obviously a big plus.
'Fudding Myself Stupid and Bloody Loving It'
Once you're in the groove and feeling the beat, you'll probably find a slow bump and grind quickly turns into self pleasure. In fact, it could be a great idea to indulge in some self love at the same time. When you decide to dance for Mister Lover Lover, it's always good to work up to the dance with a long session of sexy messages and get each other so worked up that it's all you can do not to strut.
Mirrors and Posing
I don't think specific moves or poses are necessary at the start. If you've got a full lenth mirror you've got a great opportunity to just admire the shapes your figure can create. We don't appreciate enough how much of a novelty women's bodies are to men, the curves, the lines....Just holding your hair up and tilting your hips should get you started. I don't know about you, but when I'm turned on, I just instinctively find myself arching my back and every movement seems to come from my below bits. In private, this usually turns into a lot of hip grinding. Horniness first, then your body does the talking.
Slow is Sexy
If you feel comfortable about getting on camera, keep every movement slloowww. Run your hands up your body, stroke your arms above your head and grind your hips. Keep every layer you remove slow too. Rita Hayworth does this thing where she takes her gloves off whilst singing that's a great example http://www.youtube.com/watch?v=Tzg_1XwzG08 she only takes one glove off in fact and it's fieeerce
Hair
If you've got long hair, wear it up. Once your shoulders are bare, take time to lift your hands into it and let it down with a slow, sexy shake and run your hands through it. Massaging the back of your head can feel wonderful too and the position of your arms leaves your bust perky and exposed.
Eyes
I'm a firm believer in the power of 'sexy eyes.' They're a staple for me during blowjobs or any situation where I need to transmit cock lust. If you look into his eyes (webcam, whatevs) from beneath your eyelashes and give a devilish Mona Lisa smile, he'll be jelly.
Strut
Once your hips have been making figure of eights and you're suitably worked up. You could do a little walk to show off the goods. Killer heels and stepping one foot in front of the other (again, slow, slow) should be very cool. Shoulders down, boobies out.
Accentuate.
If you're taking off a bra, really emphasize every move. Slip one strap down and shrug your shoulder and take your time before moving onto the next one. This is where it shows how wearing a proper outfit works wonders. You can spend time on each layer....slowly unzip a skirt with your back arched....sllliiddding off stockings....hooking thumbs over panties to gliiiide them down.
Oh and turning your back and peeking over your shoulder is a great move too.
Toys
It may be best to start slowly with performing. Work up to feeling great in your knickers and if you want to have nekkid time and toy fun, go for it, but don't do anything you feel shakey about.
I wouldn't try to mimic any porn stuff, which is all about how good it looks for the viewer, but there's no harm in making your play camera friendly. Not aesthetically speaking, just in terms of being abe to see (or not see) things properly.
A bullet could be a great one to start with because it's small, or a massaager that you can caress yourself with. Again, pay attention to your whole body before going for a home run.
Work on some private time, without a camera, and get used to showing your pleasure with your whole body. Once you've found what naturally happens (be it lip biting, hair pulling, thigh stroking) remember that when he's watching. I don't believe in faking it, but I think a woman having a genuinely awesome time is hot as hell. Sitting in a chair for this bit might be a great support too.
Props
Better than toys, in my opinion, is the stuff in your closet not your goodie draw. Silky scarfs are a great tool to slide over your body and hold above your head whilst pulling it through one hand. Any excuse to get your hands in the air is great. If you're feeling burlesque, feathery fans can be fun and flirty. You can make sexy eyes peeking over them too.
There's also fun to be hand by using what's in shot. Sit on a chair to slide off your stockings or slliiide down the wall yourself.
Humour
Luckily, as you're in a relationship, I'm sure you have the good fortune of being able to have a good laugh in the bedroom. And you have to be able to laugh if you trip over your panties and go face first into the carpet. Besides, a sexy smile keeps things real.
Rounding it Off
When you feel things come to a natural end (or it starts getting cold in there) I find a nice way to finish off is to kneel down and blow a kiss, if you're in the romantic mood. Or a cheeky wink.
Hmm. This reply became more about me getting ideas for tomorrow night. I do hope some of that's useful and not just a barrage of yadda yadda yadda. .
Have fun! If he can see that you're enoying yourself, he'll be in heaven.
Let us know how it goes!
xxxx
PS As I write this, there aren't any replies yet, so apologies if I've repeated everything above.