Possible Clues:

• Where gloss goes
• Elvis Presley dismissed severely by mouthpieces
• 'My ___ are sealed!'
• Bussing needs
• Mick Jagger's prominent features
• Cows would make them blooming yellow by mouth
• Smoocher's smoochers
• "My ___ are sealed"
• "Rocky Horror" poster pair
• The Go-Go's "Our ___ Are Sealed"