Related Clues:

• Sib, either way
• Member of the family, for short
• Speedy Gonzales assent
• One of a fam
• Leia, to Luke, casually
• Palindromic sibling
• Girl in the house
• Oaxaca "Of course!"
• Señor's "Sure thing!"
• Bro's twin, perhaps
• Bradbury's "___ for Space"
• 'You bet!,' south of the border
• Señor's "Positively!"
• Rel
• "Yes, yes!" in Cancun