It goes without saying, but there will hopefully be a lot of making out before any real action begins. Don't cover yourself with lipstick, as this will be more of a turn-off than a turn-on. Instead, opt for something a bit more sensual, like Booty Parlor's Kissaholic Aphrodisiac Plumping Lip Gloss ($16, Drugstore.com). It's barely tinted and the taste is one you'll both enjoy.
Don't Make These Makeup Mistakes!