If you want to use a kisser "button", don't use an actual button, or a bead, or worse a nock: use a tied-on kisser. Take some old serving string, and tie some snug but not real tight overhand knots, alternating above and below where you started on the string. Eventually, you'll build up a "button" of string knots. When it's the size you want, finish it with a tight square knot and a little (very little) superglue. Presto! A quiet and extremely light kisser button that you can twist up and down the string for adjustments, and it won't slow down your arrow.

And Paul's right: if you use a kisser, you shouldn't need a peep. I use a tied-on kisser and I do not use a peep. I also set my kisser so that it touches the tip of my nose, not my mouth. As Paul said, your mouth moves, your teeth, nose, etc. don't: so if you use a kisser, don't kiss it.