Idk why people think getting a massage from other people and asking for one is awkward. When I was a little girl, I used to stay up at night just so I can sneak into my dad's office and give him a massage because he'd give me candy or money haha. So I never found it awkward to give and ask. Just say "Hey, would you like to give me a massage?" or "God, I'm in need of a massage anyone up for grabs?"